audioflinger: more info in dumpsys

Added TID and io handle to AudioFlinger threads dump.

Change-Id: Ib1a856f3bad55c73e4c395b5e59d57435f4b9a4c
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index bfa4a49..eeecc4c 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -1188,6 +1188,10 @@
         write(fd, buffer, strlen(buffer));
     }
 
+    snprintf(buffer, SIZE, "io handle: %d\n", mId);
+    result.append(buffer);
+    snprintf(buffer, SIZE, "TID: %d\n", getTid());
+    result.append(buffer);
     snprintf(buffer, SIZE, "standby: %d\n", mStandby);
     result.append(buffer);
     snprintf(buffer, SIZE, "Sample rate: %d\n", mSampleRate);