Volume: Include a11y bit in dialog dump.

Bug: 21340132
Change-Id: Ie9a347e7e0f08c7019b4a483a3a87a8cba6f37da
diff --git a/packages/SystemUI/src/com/android/systemui/volume/VolumeDialog.java b/packages/SystemUI/src/com/android/systemui/volume/VolumeDialog.java
index 1c6462e..09f7074 100644
--- a/packages/SystemUI/src/com/android/systemui/volume/VolumeDialog.java
+++ b/packages/SystemUI/src/com/android/systemui/volume/VolumeDialog.java
@@ -312,6 +312,8 @@
         writer.print("  mShowHeaders: "); writer.println(mShowHeaders);
         writer.print("  mAutomute: "); writer.println(mAutomute);
         writer.print("  mSilentMode: "); writer.println(mSilentMode);
+        writer.print("  mAccessibility.mFeedbackEnabled: ");
+        writer.println(mAccessibility.mFeedbackEnabled);
     }
 
     private static int getImpliedLevel(SeekBar seekBar, int progress) {