[clang] [MS] Follow up fix to pass aligned args to variadic x86_32 functions (PR #65692)

[Aaron Ballman via cfe-commits]

https://github.com/AaronBallman commented:

I believe these changes are correct and they look to be reasonable, but adding the codegen code owners for final approval.

https://github.com/llvm/llvm-project/pull/65692