[compiler-rt] [rtsan] Intercept aligned_alloc on all versions of OSX if available on build machine (PR #112780)

[Chris Apple via llvm-commits]

cjappl wrote:

@yln specifically would love your eyes on this, as you implemented this pattern for TSAN. Does this seem reasonable to you? Any pitfalls I should worry about?

https://github.com/llvm/llvm-project/pull/112780