audio: fix switch to break or use FALLTHROUGH_INTENDED

Test: compile, sanity
Bug: 117509050
Change-Id: I9439f201b3d1f4485ab698d7bed063a02f17f8f0
diff --git a/media/libeffects/preprocessing/PreProcessing.cpp b/media/libeffects/preprocessing/PreProcessing.cpp
index b914f4b..50c33c6 100644
--- a/media/libeffects/preprocessing/PreProcessing.cpp
+++ b/media/libeffects/preprocessing/PreProcessing.cpp
@@ -698,6 +698,7 @@
         case PREPROC_EFFECT_STATE_ACTIVE:
             effect->ops->disable(effect);
             Session_SetProcEnabled(effect->session, effect->procId, false);
+            break;
         case PREPROC_EFFECT_STATE_CONFIG:
         case PREPROC_EFFECT_STATE_CREATED:
         case PREPROC_EFFECT_STATE_INIT: