[clang] [llvm] [PowerPC] Add Support for BCDSHIFT, BCDSHIFTR, BCDTRUNC, BCDUTRUNC, and BCDUSHIFT instruction support (PR #154715)

[Aditi Medhane via llvm-commits]

AditiRM wrote:

@s-barannikov Thanks for the guidance, it would be great if you could merge main into the branch.
Really appreciate the help!

https://github.com/llvm/llvm-project/pull/154715