Bluetooth: Enable Secure Connection during power on if configured

If support for Secure Connection has been configured, then make sure
to send the appropiate HCI command to enable it when powering on the
controller.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 52e398f..b3b619a 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1363,6 +1363,14 @@
 	/* Check for Synchronization Train support */
 	if (lmp_sync_train_capable(hdev))
 		hci_req_add(req, HCI_OP_READ_SYNC_TRAIN_PARAMS, 0, NULL);
+
+	/* Enable Secure Connections if supported and configured */
+	if (lmp_sc_capable(hdev) &&
+	    test_bit(HCI_SC_ENABLED, &hdev->dev_flags)) {
+		u8 support = 0x01;
+		hci_req_add(req, HCI_OP_WRITE_SC_SUPPORT,
+			    sizeof(support), &support);
+	}
 }
 
 static int __hci_init(struct hci_dev *hdev)