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/deviceLib/hipComplex.cpp

@@ -21,7 +21,7 @@ THE SOFTWARE.
 #include <iostream>
 #include "hip/hip_runtime.h"
 #include "hip/hip_runtime_api.h"
-#include "hip/hcc_detail/hip_complex.h"
+#include "hip/amd_detail/hip_complex.h"
 
 #define LEN 64
 #define SIZE 64 << 2