[clang] [llvm] Add support for Windows Secure Hot-Patching (PR #138972)

[Qinkun Bao via cfe-commits]

qinkunbao wrote:

Hi, can you take a look at the buildbot failures.

https://lab.llvm.org/buildbot/#/builders/51/builds/18489

https://github.com/llvm/llvm-project/pull/138972