dd: implement DeviceAddressSpaceType api

libraries/libstratosphere/include/stratosphere/dd/dd_process_handle.hpp

@@ -13,12 +13,12 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-
 #pragma once
 #include <vapours.hpp>
+#include <stratosphere/dd/dd_types.hpp>
 
 namespace ams::dd {
 
-    ::Handle GetCurrentProcessHandle();
+    ProcessHandle GetCurrentProcessHandle();
 
 }