[clang] [Driver] Restore compiler-rt arch suffix for PS and Windows (PR #89775)

[Paul T Robinson via cfe-commits]

pogo59 wrote:

>  if you build with runtimes on windows (which is the suggested way) it will end up with the new style without arch suffix

Was someone from Microsoft party to that decision? If not, perhaps it needs to be revisited. We should not be making decisions about how they want to do things.

https://github.com/llvm/llvm-project/pull/89775