SWDEV-557828 - fix hip-tests on cuda (#1152)

Co-authored-by: Rahul Manocha <rmanocha@amd.com>

projects/hip-tests/catch/unit/memory/hipHostRegister.cc

@@ -930,9 +930,11 @@ TEMPLATE_TEST_CASE("Unit_hipHostRegister_Flags", "", int, float, double) {
 #endif
       FlagType{0xF0, false}, FlagType{0xFFF2, false}, FlagType{0xFFFFFFFF, false});
 
+#if (HT_AMD == 1) && (HT_LINUX == 1)
   if (IsNavi4X() && (flags.value & hipExtHostRegisterUncached)) {
     return;
   }
+#endif
   INFO("Testing hipHostRegister flag: " << flags.value);
   if (flags.valid) {
     HIP_CHECK(hipHostRegister(hostPtr, sizeBytes, flags.value));
@@ -942,7 +944,6 @@ TEMPLATE_TEST_CASE("Unit_hipHostRegister_Flags", "", int, float, double) {
   }
   free(hostPtr);
 }
-
 /**
  * Test Description
  * ------------------------