Default tuning to power 10 for RHEL10 and later (RHEL-56476).

update from releases/gcc-14 branch
GCC 14.2 release
PRs analyzer/114899, c++/99241, c++/99242, c++/104981, c++/106760,
end/115527, middle-end/115836,
end/115887, pch/115312, rtl-optimization/115049,
optimization/115565, target/87376, target/88236, target/97367,
optimization/113673,
optimization/115382, tree-optimization/115646,
optimization/115669, tree-optimization/115694,
optimization/115701, tree-optimization/115723,
optimization/115841, tree-optimization/115843,
optimization/115867, tree-optimization/115868,
optimization/116034, tree-optimization/116057

update from releases/gcc-14 branch
PRs c/114930, c/115502, c/115587, c++/115198, c++/115358, c++/115504,
optimization/115278,
optimization/115508
revert the August 2016 workaround for python bytecode compilation (#2294381)

update from releases/gcc-14 branch
PRs ada/114398, ada/114708, c/115290, c++/99678, c++/115239, c++/115283,
optimization/115281, target/109549, target/111343, target/115253,
optimization/115544
fix s390x ICEs with vector permutations from memory (#2293207, #2292501)

update from releases/gcc-14 branch
PRs ada/115270, c/114493, c++/105320, c++/114275, c++/114868, c++/114983,
end/108789,
end/115352, modula2/114886, rtl-optimization/114902,
optimization/115038, rtl-optimization/115092, target/113719,
optimization/115149, tree-optimization/115192,
optimization/115197, tree-optimization/115232,
optimization/115307, tree-optimization/115337

update from releases/gcc-14 branch
PRs c++/114901, c++/114903, c++/114974, c++/114994, c++/115114,
end/114931, sanitizer/115172, target/69374, target/112959,
optimization/114998, tree-optimization/115143,
optimization/115152, tree-optimization/115154

update new SPDX identifiers from all outstanding issues

fix a combinatorial explosion in combine (PR rtl-optimization/101523)

update from releases/gcc-14 branch
GCC 14.1.0 release
PRs analyzer/111475, c++/89224, c++/114856, c++/114889, c++/114935,
end/114734, middle-end/114907, modula2/113768,
optimization/114924,
optimization/114876,
optimization/114921, tree-optimization/114965

enable hardening and configure with --enable-host-pie --enable-host-bind-now
don't require rocm-runtime on RHEL

update from trunk and releases/gcc-14 branch
GCC 14.1.0-rc1
PRs c++/93595, c++/99426, c++/106820, c++/107457, c++/109966, c++/111284,
profile/114715, gcov-profile/114720, libgcc/114689,
end/112938,
end/114753, modula2/112893, modula2/114745, modula2/114807,
optimization/114768, sanitizer/114687, sanitizer/114743,
optimization/114403, tree-optimization/114666,
optimization/114733, tree-optimization/114736,
optimization/114749, tree-optimization/114769,
optimization/114787, tree-optimization/114792,
optimization/114799, tree-optimization/114832,
optimization/114883
switch to --with-arch_64=x86-64-v3 for latest RHEL

update from trunk
PRs analyzer/114472, c++/114303, c++/114409, debug/112878,
end/110027, middle-end/114681, target/114639,
optimization/109596, tree-optimization/114672
fix symbol version of std::__basic_file<char>::native_handle() const
emit -Whardened warning even for -fhardened -fcf-protection=none

update from trunk
PRs analyzer/114588, bootstrap/106472, c++/91079, c++/99377, c++/100667,
profile/113765,
profile/114115, gcov-profile/114601, ipa/111571, ipa/113359,
end/114552, middle-end/114599, middle-end/114604,
end/114627, middle-end/114628, modula2/114517,
optimization/112560, rtl-optimization/114415,
optimization/112303,
optimization/114115, tree-optimization/114480,
optimization/114485, tree-optimization/114551,
optimization/114555, tree-optimization/114557,
optimization/114566, tree-optimization/114624
don't emit VEX encoded AES-NI instructions when just -maes and not -mavx
bit extraction from 128-bit constant pool entry extract the correct

update from trunk
PRs analyzer/109251, analyzer/110902, analyzer/110928, analyzer/111305,
end/111151,
end/111632, middle-end/111683, middle-end/113396,
end/114347, middle-end/114348, middle-end/114480,
optimization/101523, rtl-optimization/112415, sanitizer/111736,
optimization/96147, tree-optimization/109925,
optimization/111736, tree-optimization/113727,
optimization/114057, tree-optimization/114151,
optimization/114322, tree-optimization/114329,
optimization/114365, tree-optimization/114375,
optimization/114396, tree-optimization/114405,
optimization/114425, tree-optimization/114433,
optimization/114464, tree-optimization/114469,
optimization/114471

update from trunk
PRs ada/113979, analyzer/114159, c++/92687, c++/98356, c++/98645,
end/95351,
end/105533, middle-end/113907, middle-end/114108,
end/114136, middle-end/114156, middle-end/114157,
end/114196, middle-end/114209, middle-end/114299,
end/114313, middle-end/114319, middle-end/114332,
optimization/110079,
optimization/113010, rtl-optimization/114190,
optimization/114211, sanitizer/97696, sanitizer/112709,
optimization/98238, tree-optimization/110199,
optimization/113466, tree-optimization/113557,
optimization/114009, tree-optimization/114071,
optimization/114121, tree-optimization/114164,
optimization/114192, tree-optimization/114197,
optimization/114203, tree-optimization/114231,
optimization/114239, tree-optimization/114246,
optimization/114249, tree-optimization/114269,
optimization/114278, tree-optimization/114293,
optimization/114297

update License identifier in the spec file