AudioFlinger: Improve Thread logging.

Test: dumpsys media.audio_flinger
Bug: 30572472
Change-Id: I43f72354a6ece045f5f9f664946a406166974258
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index fca840b..75b4e4c 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -58,6 +58,8 @@
 #include <media/LinearMap.h>
 #include <media/VolumeShaper.h>
 
+#include <audio_utils/SimpleLog.h>
+
 #include "FastCapture.h"
 #include "FastMixer.h"
 #include <media/nbaio/NBAIO.h>