Add log and dump for external vibration and HapticGenerator.

Adding more log and dump for external vibration and HapticGenerator is
useful for debugging.

Bug: 225287868
Test: make, dumpsys media.audio_flinger
Change-Id: If9befd3d3b4a4ba005069435f96d84cb02764527
diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index 279ff3d..c676ae4 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -1906,6 +1906,7 @@
         PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
         if ((mTrack->channelMask() & AUDIO_CHANNEL_HAPTIC_ALL) != AUDIO_CHANNEL_NONE
                 && playbackThread->mHapticChannelCount > 0) {
+            ALOGD("%s, haptic playback was muted for track %d", __func__, mTrack->id());
             mTrack->setHapticPlaybackEnabled(false);
             *ret = true;
         }
@@ -1923,6 +1924,7 @@
         PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
         if ((mTrack->channelMask() & AUDIO_CHANNEL_HAPTIC_ALL) != AUDIO_CHANNEL_NONE
                 && playbackThread->mHapticChannelCount > 0) {
+            ALOGD("%s, haptic playback was unmuted for track %d", __func__, mTrack->id());
             mTrack->setHapticPlaybackEnabled(true);
             *ret = true;
         }