748b028540
This patch essentially re-lands https://github.com/llvm/llvm-project/pull/114293 with the following fixups - `nosve2-aes` should disable the backend feature `FeatureSVEAES` such that the set of existing instructions that this removes is unchanged. - FMV dependencies now use the autogenerated `ExtensionDepencies` structure (since https://github.com/llvm/llvm-project/pull/113281) so we do not require the change to `AArch64FMV.td`.