Generating hiprtc lib with hcc+hip-clang

Review comments - generate hiprtc lib everytime when HIP_PLATFORM is hcc

Changes for hip-clang

Removing pre processor directive to simplify

Change-Id: Id38ab368362b58ee0458baeb8051fea709ae6bba


[ROCm/hip commit: 54447268cc]

projects/hip/tests/src/hiprtc/saxpy.cpp

@@ -143,7 +143,7 @@ int main()
     hipMemcpyDtoH(hOut.get(), dOut, bufferSize);
 
     for (size_t i = 0; i < n; ++i) {
-       if (a * hX[i] + hY[i] != hOut[i]) { failed("Validation failed."); }
+        if (fabs(a * hX[i] + hY[i] - hOut[i]) > fabs(hOut[i])* 1e-6) { failed("Validation failed."); }
     }
 
     hipFree(dX);