Mapping for Aarch64 CPU features

[antoyo]

Since the patch for Aarch64 CPU features will be updated to use the canonical GCC names.

GCC -> Rust:

• asimddp -> dotprod
• asimdfhm -> fhm
• fphp + asimdhp -> fp16
• frint -> frintts
• jscvt -> jsconv
• atomics -> lse
• memtag -> mte
• rng -> rand
• lrcpc -> rcpc
• ilrcpc -> rcpc2
• asimdrdm -> rdm
• asimd -> neon
• sveaes -> sve2-aes
• svebitperm -> sve2-bitperm
• svesha3 -> sve2-sha3
• svesm4 -> sve2-sm4
• crc32 -> crc

Probably:

• svef32mm -> f32mm
• svef64mm -> f64mm