A2DP SRC offload support

bluedroid changes to support A2DP SRC offload to BT FW.
add functionality to relay a2dp offload requests and responses
between AudioHAL & the BT vendor library.

Change-Id: Ie4e5992c48e95b0efb372a405e8537e4fd3ea071
Signed-off-by: Sridhar Vashist <svashist@motorola.com>
diff --git a/hci/Android.mk b/hci/Android.mk
index dd25d3d..e267812 100644
--- a/hci/Android.mk
+++ b/hci/Android.mk
@@ -32,6 +32,7 @@
     $(LOCAL_PATH)/../btcore/include \
     $(LOCAL_PATH)/../stack/include \
     $(LOCAL_PATH)/../utils/include \
+    $(LOCAL_PATH)/../bta/include \
     $(bdroid_C_INCLUDES)
 
 LOCAL_MODULE := libbt-hci