[llvm] [AArch64][SVE] Add patterns for bit-select instructions. (PR #138689)

[Kyrill Tkachov via llvm-commits]

ktkachov wrote:

Note you can use these instructions for Neon modes as well https://godbolt.org/z/ccdEoE1G7

https://github.com/llvm/llvm-project/pull/138689