Add a tee sink filename suffix to distinguish type

Test: tee sink filenames have a _C (capture), _P (playback), or _T (track) suffix
Change-Id: Ib8ddadb0f3e3ba3ac620e33072bb212d5cde4978
diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index 5e07e3b..a80214c 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -234,7 +234,7 @@
 AudioFlinger::ThreadBase::TrackBase::~TrackBase()
 {
 #ifdef TEE_SINK
-    dumpTee(-1, mTeeSource, mId);
+    dumpTee(-1, mTeeSource, mId, 'T');
 #endif
     // delete the proxy before deleting the shared memory it refers to, to avoid dangling reference
     mServerProxy.clear();