Bluetooth: Use lmp_ssp_capable where applicable

This patch replaces all LMP_SIMPLE_PAIR bit checking by the helper
macro lmp_ssp_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 498d55e..b120388 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -528,7 +528,7 @@
 	if (hdev->features[7] & LMP_LSTO)
 		events[6] |= 0x80; /* Link Supervision Timeout Changed */
 
-	if (hdev->features[6] & LMP_SIMPLE_PAIR) {
+	if (lmp_ssp_capable(hdev)) {
 		events[6] |= 0x01;	/* IO Capability Request */
 		events[6] |= 0x02;	/* IO Capability Response */
 		events[6] |= 0x04;	/* User Confirmation Request */