cmake hip-rocclr as default build,change HIP_PLATFORM to amd|nvidia

Change-Id: I59d2e15b297b6ca2d5eee1a6dee642bdb01a3839


[ROCm/hip commit: d10124e1d7]

projects/hip/tests/src/deviceLib/hipTestDotFunctions.cpp

@@ -22,7 +22,7 @@ THE SOFTWARE.
 
 /* HIT_START
  * BUILD: %t %s ../test_common.cpp NVCC_OPTIONS -std=c++11
- * TEST: %t EXCLUDE_HIP_PLATFORM nvcc
+ * TEST: %t EXCLUDE_HIP_PLATFORM nvidia
  * HIT_END
  */