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

hipamd/packaging/hip-base.postinst

@@ -28,3 +28,8 @@ mkdir -p $ROCMINCDIR
 pushd $ROCMINCDIR
     ln -r -s -f $HIPINCDIR hip
 popd
+
+# The following will be removed after upstream updation
+pushd $HIPINCDIR
+    ln -r -s -f amd_detail hcc_detail
+popd