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/samples/1_Utils/hipCommander/hipCommander.cpp

@@ -813,12 +813,12 @@ int main(int argc, char* argv[]) {
     CommandStream* cs;
 
     if (p_blockingSync) {
-#ifdef __HIP_PLATFORM_HCC__
+#ifdef __HIP_PLATFORM_AMD__
         printf("setting BlockingSync for AMD\n");
         setenv("HIP_BLOCKING_SYNC", "1", 1);
 
 #endif
-#ifdef __HIP_PLATFORM_NVCC__
+#ifdef __HIP_PLATFORM_NVIDIA__
         printf("setting cudaDeviceBlockingSync\n");
         HIPCHECK(hipSetDeviceFlags(cudaDeviceBlockingSync));
 #endif