Bluetooth: Move ident to struct l2cap_chan

ident is chan property, no need to reside on socket.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 7df8118..cad4bc7 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -818,7 +818,7 @@
 		rsp.dcid   = cpu_to_le16(l2cap_pi(sk)->scid);
 		rsp.result = cpu_to_le16(L2CAP_CR_SUCCESS);
 		rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
-		l2cap_send_cmd(l2cap_pi(sk)->conn, l2cap_pi(sk)->ident,
+		l2cap_send_cmd(l2cap_pi(sk)->conn, l2cap_pi(sk)->chan->ident,
 					L2CAP_CONN_RSP, sizeof(rsp), &rsp);
 
 		if (l2cap_pi(sk)->conf_state & L2CAP_CONF_REQ_SENT) {
@@ -921,7 +921,7 @@
 			rsp.dcid   = cpu_to_le16(l2cap_pi(sk)->scid);
 			rsp.result = cpu_to_le16(result);
 			rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
-			l2cap_send_cmd(conn, l2cap_pi(sk)->ident,
+			l2cap_send_cmd(conn, l2cap_pi(sk)->chan->ident,
 					L2CAP_CONN_RSP, sizeof(rsp), &rsp);
 		}