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

Change-Id: Icad342843c039c634e249a13a7aa31400730b1dd


[ROCm/clr commit: 775dc204aa]

projects/clr/rocclr/device/rocm/rocblitcl.cpp

@@ -18,7 +18,7 @@
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  THE SOFTWARE. */
 
-namespace roc {
+namespace amd::roc {
 
 #define BLIT_KERNEL(...) #__VA_ARGS__
 
@@ -31,4 +31,4 @@ const char* SchedulerSourceCode = BLIT_KERNEL(
   }
 );
 
-}  // namespace roc
+}  // namespace amd::roc