[llvm] [OFFLOAD] Add memory data locking API for libomptarget migration (PR #173138)

[via llvm-commits]

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@@ -131,3 +131,27 @@ def olMemFill : Function {
     Return<"OL_ERRC_INVALID_SIZE", ["`FillSize % PatternSize != 0`"]>
   ];
 }
+
+def olMemDataLock : Function {
+  let desc = "Locks / pins host memory using the plugin runtime.";
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fineg74 wrote:

Added more API description

https://github.com/llvm/llvm-project/pull/173138