[clang] [Driver] Hook up Haiku PowerPC support (PR #69134)

[Brad Smith via cfe-commits]

brad0 wrote:

> Does backend have any recognition of Haiku-PPC target?

Can you clarify what it is you're referring to?

I didn't come across anything looking around under llvm/, but I might have missed something.

I was looking in clang/lib/Basic/Targets/PPC.cpp, but didn't see anything that needed adjusting there.

https://github.com/llvm/llvm-project/pull/69134