[llvm] [OFFLOAD] Remove weak from __kmpc_* calls and gather them in one header (PR #164613)

[Michael Klemm via llvm-commits]

================
@@ -134,7 +151,7 @@ struct TargetMemcpyArgsTy {
         IsRectMemcpy(true), Length(0), DstOffset(0), SrcOffset(0),
         ElementSize(ElementSize), NumDims(NumDims), Volume(Volume),
         DstOffsets(DstOffsets), SrcOffsets(SrcOffsets),
-        DstDimensions(DstDimensions), SrcDimensions(SrcDimensions){};
+        DstDimensions(DstDimensions), SrcDimensions(SrcDimensions) {};
----------------
mjklemm wrote:

```suggestion
        DstDimensions(DstDimensions), SrcDimensions(SrcDimensions){};
```

Unrelated change.

https://github.com/llvm/llvm-project/pull/164613