Bluetooth: Add lmp_host_le_capable() macro

Since we have the extended LMP features properly implemented, we
should check the LMP_HOST_LE bit to know if the host supports LE.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 5f37822..5004e36 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -219,6 +219,9 @@
 #define LMP_INQ_TX_PWR	0x02
 #define LMP_EXTFEATURES	0x80
 
+/* Extended LMP features */
+#define LMP_HOST_LE	0x02
+
 /* Connection modes */
 #define HCI_CM_ACTIVE	0x0000
 #define HCI_CM_HOLD	0x0001