ghc-compiler conflicts with ghc8.10-compiler-8.10.7

conflicts with ghc8.10-8.10.7
add ghc-filesystem obsoletes to help dnf

Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild

https://downloads.haskell.org/~ghc/8.10.7/docs/html/users_guide/8.10.7-notes.html
add filesystem subpackage

Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild

Rebuilt for https://fedoraproject.org/wiki/Changes/LIBFFI34

move zlib-devel Recommends to cabal-install

update to 8.10.5 with patch for missing rts symbols
use llvm 11 for ARM
https://downloads.haskell.org/~ghc/8.10.5/docs/html/users_guide/8.10.5-notes.html

perf build

rebase to 8.10.4 from ghc:8.10 module stream
https://downloads.haskell.org/ghc/8.10.4/docs/html/users_guide/8.10.1-notes.html
use llvm10 for ARM

fix build with sphinx4 (#1977317)

ghc-compiler now requires ghc-filesystem for html docdirs

Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild

Add riscv64 to ghc_unregisterized_arches

Cleanup old %if statements