[llvm] [ctx_prof] Factor the callsite instrumentation exclusion criteria (PR #108471)

[Teresa Johnson via llvm-commits]

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@@ -250,6 +250,25 @@ define void @no_counters() {
   call void @bar()
   ret void
 }
+
+define void @inlineasm() {
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teresajohnson wrote:

I'm not sure what specifically we are looking for below with regards to the check affected by this patch. Maybe add a comment.

https://github.com/llvm/llvm-project/pull/108471