Merge "Fix implicit-fallthrough warnings. DO NOT MERGE."

wifi/1.2/default/wifi_legacy_hal.cpp

@@ -550,6 +550,7 @@ wifi_error WifiLegacyHal::startGscan(
                 }
                 // Fall through if failed. Failure to retrieve cached scan
                 // results should trigger a background scan failure.
+                [[fallthrough]];
                 case WIFI_SCAN_FAILED:
                     on_failure_user_callback(id);
                     on_gscan_event_internal_callback = nullptr;