strat: prefer os::NativeHandle to Handle/svc::Handle where sensible

stratosphere/fatal/source/fatal_config.cpp

@@ -24,7 +24,7 @@ namespace ams::fatal::srv {
         FatalConfig g_config;
 
         /* Event creator. */
-        Handle GetFatalDirtyEventReadableHandle() {
+        os::NativeHandle GetFatalDirtyEventReadableHandle() {
             Event evt;
             R_ABORT_UNLESS(setsysAcquireFatalDirtyFlagEventHandle(&evt));
             return evt.revent;