Fix implicit fallthrough warning.

Bug: 112564944
Test: make checkbuild
Change-Id: Ia7b87dcd910141893d9b15ce781a56c4bc9efd69
diff --git a/camera/ndk/impl/ACameraDevice.cpp b/camera/ndk/impl/ACameraDevice.cpp
index 907debc..9d70d40 100644
--- a/camera/ndk/impl/ACameraDevice.cpp
+++ b/camera/ndk/impl/ACameraDevice.cpp
@@ -1290,7 +1290,7 @@
         }
         default:
             ALOGE("Unknown error from camera device: %d", errorCode);
-            // no break
+            [[fallthrough]];
         case ERROR_CAMERA_DEVICE:
         case ERROR_CAMERA_SERVICE:
         {