Bluetooth: Fix initial security level of LE links

As the default security level (BT_SECURITY_SDP) doesn't make sense for
LE links, initialize LE links with something that makes sense.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 166fa11..21d6055 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2753,6 +2753,7 @@
 
 	mgmt_connected(hdev->id, &ev->bdaddr);
 
+	conn->sec_level = BT_SECURITY_LOW;
 	conn->handle = __le16_to_cpu(ev->handle);
 	conn->state = BT_CONNECTED;