Bluetooth: set skbuffer priority based on L2CAP socket priority

This uses SO_PRIORITY to set the skbuffer priority field

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 38a5615..c10bf1d 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -747,7 +747,8 @@
 void l2cap_chan_close(struct l2cap_chan *chan, int reason);
 void l2cap_chan_destroy(struct l2cap_chan *chan);
 int l2cap_chan_connect(struct l2cap_chan *chan);
-int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len);
+int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len,
+								u32 priority);
 void l2cap_chan_busy(struct l2cap_chan *chan, int busy);
 
 #endif /* __L2CAP_H */