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

Change-Id: I59d2e15b297b6ca2d5eee1a6dee642bdb01a3839


[ROCm/hip commit: d10124e1d7]

projects/hip/tests/src/Functional/host/hipFloat16.cpp

@@ -21,7 +21,7 @@ THE SOFTWARE.
 */
 
 /* HIT_START
- * BUILD: %t %s ../../test_common.cpp EXCLUDE_HIP_PLATFORM nvcc
+ * BUILD: %t %s ../../test_common.cpp EXCLUDE_HIP_PLATFORM nvidia
  * TEST: %t 1.2 2.3
  * HIT_END
  */