audio: fix switch to break or use FALLTHROUGH_INTENDED

Test: compile, sanity
Bug: 117509050
Change-Id: I9439f201b3d1f4485ab698d7bed063a02f17f8f0
Merged-In: 320fd852fb98174804e5f505773500f1cf76f3af
(cherry picked from commit 320fd852fb98174804e5f505773500f1cf76f3af)
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 0318ffe..91f30c6 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -6048,6 +6048,7 @@
                     case AUDIO_FORMAT_DOLBY_TRUEHD:
                     case AUDIO_FORMAT_E_AC3_JOC:
                         mSurroundFormats.insert(format);
+                        break;
                     default:
                         break;
                 }