Bluetooth: convert force_reliable variable to flag in l2cap chan

force_reliable variable inside l2cap_chan is a logical one and can
be easily converted to flag

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index b21ecff..57e4b2c 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -948,7 +948,7 @@
 	list_for_each_entry(chan, &conn->chan_l, list) {
 		struct sock *sk = chan->sk;
 
-		if (chan->force_reliable)
+		if (test_bit(FLAG_FORCE_RELIABLE, &chan->flags))
 			sk->sk_err = err;
 	}