wsl/hsakmt: clean up namespace

Signed-off-by: Longlong Yao <Longlong.Yao@amd.com>
Reviewed-by: lyndonli <Lyndon.Li@amd.com>
Reviewed-by: Flora Cui <flora.cui@amd.com>
Part-of: <http://10.67.69.192/wsl/libhsakmt/-/merge_requests/7>

wddm/cmd_util.cpp

@@ -2,8 +2,8 @@
 
 #include "inc/wddm/cmd_util.h"
 
-namespace rocr {
-namespace core {
+namespace wsl {
+namespace thunk {
 
 /*
  * Builds a COPY_DATA packet that copies data.
@@ -277,5 +277,5 @@ size_t CmdUtil::BuildAtomicMem(
   return sizeof(atom);
 }
 
-}  // namespace core
-} // namespace rocr
+} // namespace thunk
+} // namespace wsl