[llvm] [ARM][AArch64] Enable FEAT_FHM for Arm Neoverse N2 (PR #82613)

[Victor Campos via llvm-commits]

vhscampos wrote:

Please double check if the arch features are listed in sorted alphabetical order. If so, please put FHM and fp16fml in their correct places.

https://github.com/llvm/llvm-project/pull/82613