AudioTrack API for delay/padding in offload

Add API to add support for specifying delay and padding values
  for the current compressed stream.
Add API to indicate the end of stream after a write() operation

Bug: 122825812
Test: atest AudioTrackOffloadTest
Change-Id: Ib4dc76938fb5cea77ce67aa12aca7d38f66e756c
diff --git a/core/jni/Android.bp b/core/jni/Android.bp
index be12700..0466aaa 100644
--- a/core/jni/Android.bp
+++ b/core/jni/Android.bp
@@ -275,6 +275,7 @@
         "libselinux",
         "libandroidicu",
         "libmedia",
+        "libmedia_helper",
         "libmediametrics",
         "libmeminfo",
         "libaudioclient",