[clang] [llvm] [Clang][AArch64][SVE2p3][SME2p3] Add intrinsics for v9.7a Two-way signed/unsigned absolute difference sum and accumulate long ops (PR #188972)

[Martin Wehking via cfe-commits]

https://github.com/MartinWehking commented:

Nits, but apart from that: LGTM

https://github.com/llvm/llvm-project/pull/188972