Clean and reorder operation enums. am: 5d67a0bf05
am: 172f95dda5

Change-Id: Ied1cf061c21a7864ff2db6d939c324a144e512f1
diff --git a/wifi/1.2/default/wifi_legacy_hal.cpp b/wifi/1.2/default/wifi_legacy_hal.cpp
index 55ec96d..375204c 100644
--- a/wifi/1.2/default/wifi_legacy_hal.cpp
+++ b/wifi/1.2/default/wifi_legacy_hal.cpp
@@ -550,7 +550,6 @@
                 }
                 // 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;