Remove hip-hcc codes: Part three

1.Rename include/hip/hcc_detail/ as include/hip/amd_detail/

2.Rename include/hip/nvcc_detail/ as include/hip/nvidia_detail/

3.Create __HIP_PLATFORM_AMD__ to replace __HIP_PLATFORM_HCC__

4.Create __HIP_PLATFORM_NVIDIA__ to replace __HIP_PLATFORM_NVCC__

After hcc_detail, nvcc_detail, __HIP_PLATFORM_HCC__ and __HIP_PLATFORM_NVCC__
have been removed from upstream, they will be removed from hip runtime.

Change-Id: I1ae457effd739d6c25bca203c1724b026be21fce


[ROCm/hip commit: c2adc70d4d]

projects/hip/tests/src/g++/hipMalloc.cpp

@@ -18,7 +18,7 @@
  * */
 
 /* HIT_START
- * BUILD_CMD: hipMalloc %cxx -D__HIP_PLATFORM_HCC__ -I%hip-path/include -I%rocm-path/include %S/%s -Wl,--rpath=%hip-path/lib %hip-path/lib/libamdhip64.so -o %T/%t -std=c++11 EXCLUDE_HIP_PLATFORM nvidia EXCLUDE_HIP_LIB_TYPE static
+ * BUILD_CMD: hipMalloc %cxx -D__HIP_PLATFORM_AMD__ -I%hip-path/include -I/opt/rocm/include %S/%s -Wl,--rpath=%hip-path/lib %hip-path/lib/libamdhip64.so -o %T/%t -std=c++11 EXCLUDE_HIP_PLATFORM nvidia EXCLUDE_HIP_LIB_TYPE static
  * TEST: %t EXCLUDE_HIP_PLATFORM nvidia EXCLUDE_HIP_LIB_TYPE static
  * HIT_END
  */