Bluetooth: Use lmp_sniffsubr_capable where applicable

This patch replaces all LMP_SNIFF_SUBR bit checking by the helper
macro lmp_sniffsubr_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 eb9024a..060780c 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -513,7 +513,7 @@
 	if (hdev->features[3] & LMP_RSSI_INQ)
 		events[4] |= 0x02; /* Inquiry Result with RSSI */
 
-	if (hdev->features[5] & LMP_SNIFF_SUBR)
+	if (lmp_sniffsubr_capable(hdev))
 		events[5] |= 0x20; /* Sniff Subrating */
 
 	if (hdev->features[5] & LMP_PAUSE_ENC)