Add a method to reset circular references in audio flinger service

Bug: 330882064
Test: ./audioflinger_aidl_fuzzer
(cherry picked from https://partner-android-review.googlesource.com/q/commit:35b5c8065936ff3a1daa565ee61c010009688251)
Change-Id: Ibc02685bfddfb01a4ff18c6c16d2e49702eb24ee
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 143a766..501aed1 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -62,6 +62,8 @@
 public:
     static void instantiate() ANDROID_API;
 
+    status_t resetReferencesForTest();
+
 private:
 
     // ---- begin IAudioFlinger interface