Merge branch 'FindOpenMP-clang-HIP-device' into release-3.16

Merge-request: !3911

Modules/FindOpenMP.cmake

@@ -128,6 +128,8 @@ int main(void) {
 #ifdef _OPENMP
   omp_get_max_threads();
   return 0;
+#elif defined(__HIP_DEVICE_COMPILE__)
+  return 0;
 #else
   breaks_on_purpose
 #endif