SWDEV-463865 - changed device,roc and pal namespaces to be nested under amd

Change-Id: Icad342843c039c634e249a13a7aa31400730b1dd

rocclr/device/rocm/rocprintf.cpp

@@ -39,7 +39,7 @@ bool populateFormatStringHashMap(
     std::map<uint64_t, std::string> &strMap);
 } // namespace amd
 
-namespace roc {
+namespace amd::roc {
 
 PrintfDbg::PrintfDbg(Device& device, FILE* file)
     : dbgBuffer_(nullptr), dbgBuffer_size_(0), dbgFile_(file), gpuDevice_(device) {}