added guard against hip_runtime.h so that non-hcc compilers can use it

Change-Id: I3d68deda9ce8a5956e21e15a69e549d6c21e3e39

include/hip/hcc_detail/hip_runtime.h

@@ -41,6 +41,8 @@ THE SOFTWARE.
 #include <stddef.h>
 #endif//__cplusplus
 
+#if __HCC__
+
 // Define NVCC_COMPAT for CUDA compatibility
 #define NVCC_COMPAT
 #define CUDA_SUCCESS hipSuccess
@@ -481,6 +483,6 @@ do {\
  */
 
 
-
+#endif
 
 #endif//HIP_HCC_DETAIL_RUNTIME_H