Bluetooth: Fix error returned to bluez on LE Pairing Failure

Change-Id: I1e7908e133d53b41bdd58a54a2e293526e96e160
Signed-off-by: Brian Gix <bgix@codeaurora.org>
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 6838fd5..94d0f06 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -850,7 +850,7 @@
 		err = -EPERM;
 		del_timer(&hcon->smp_timer);
 		clear_bit(HCI_CONN_ENCRYPT_PEND, &hcon->pend);
-		mgmt_auth_failed(hcon->hdev->id, conn->dst, skb->data[1]);
+		mgmt_auth_failed(hcon->hdev->id, conn->dst, skb->data[0]);
 		hci_conn_put(hcon);
 		break;