[llvm] [CodeGen][X86] Fix lowering of tailcalls when `-ms-hotpatch` is used (PR #77245)

[via llvm-commits]

sylvain-audi wrote:

> @aganea @tycho @sylvain-audi If somebody could make a clang/lld build with the patch available for me, I'd be happy to run this against the Live++ test suite.

@MolecularMatters I sent you a build with this PR modification, based on 17.0.6.
Just mentioning it so @tycho  and @aganea don't need to worry about preparing/sending it.

https://github.com/llvm/llvm-project/pull/77245