Bluetooth: Use lmp_rswitch_capable where applicable

This patch replaces all LMP_RSWITCH bit checking by the helper macro
lmp_rswitch_capable.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 5722a38..5c71c85 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -623,7 +623,7 @@
 	struct hci_cp_write_def_link_policy cp;
 	u16 link_policy = 0;
 
-	if (hdev->features[0] & LMP_RSWITCH)
+	if (lmp_rswitch_capable(hdev))
 		link_policy |= HCI_LP_RSWITCH;
 	if (hdev->features[0] & LMP_HOLD)
 		link_policy |= HCI_LP_HOLD;