[llvm-branch-commits] [MC][NFC] Store SubTypeKV names as string table (PR #207580)

[Alexis Engelke via llvm-branch-commits]

https://github.com/aengelke created https://github.com/llvm/llvm-project/pull/207580

This moves the large SubTypeKV arrays to .rodata, as they no longer
contain the key pointers that need to be relocated.

Additionally, remove the largely redundant CPUNames arrays and integrate
the AArch64 aliases into the sorted string table. There was really no
need to introduce these 17 kiB arrays solely for including AArch64
aliases in help output.... (added in b6c22a4)