stratosphere: Fix fs.mitm bis_protect race condition.

stratosphere/sm/source/sm_manager_service.cpp

@@ -31,3 +31,7 @@ void ManagerService::AtmosphereEndInitDefers() {
     Registration::EndInitDefers();
 }
 
+void ManagerService::AtmosphereHasMitm(Out<bool> out, SmServiceName service) {
+    out.SetValue(Registration::HasMitm(smEncodeName(service.name)));
+}
+