[llvm] [Offload][NFC] Rename 'omp::target` namespace to `offload` (PR #195682)

[Joseph Huber via llvm-commits]

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@@ -34,9 +34,9 @@
 #include <vector>
 
 #ifdef OMPT_SUPPORT
-using namespace llvm::omp::target::ompt;
+using namespace llvm::offload::ompt;
 #endif
-using namespace llvm::omp::target::debug;
+using namespace llvm::offload::debug;
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jhuber6 wrote:

Given that it was already using the same namespace as the plugins and this is just an NFC renaming, can we make that a follow-up?

https://github.com/llvm/llvm-project/pull/195682