[llvm] [ProfileData] Use size_t in PatchItem (NFC) (PR #87014)

[Omair Javaid via llvm-commits]

omjavaid wrote:

I have reverted this change as it broke Arm32 bit build on various LLVM buildbots.
For example:
https://lab.llvm.org/buildbot/#/builders/17/builds/51129

https://github.com/llvm/llvm-project/pull/87014