[XAM/Notify] XNotifyGetNext - Added check to assure if param_ptr is correct

src/xenia/kernel/xam/xam_notify.cc

@@ -42,7 +42,7 @@ DECLARE_XAM_EXPORT1(XamNotifyCreateListener, kNone, kImplemented);
 // https://github.com/CodeAsm/ffplay360/blob/master/Common/AtgSignIn.cpp
 dword_result_t XNotifyGetNext(dword_t handle, dword_t match_id,
                               lpdword_t id_ptr, lpdword_t param_ptr) {
-  if (!handle) {
+  if (!handle | !param_ptr) {
     return 0;
   }