Bluetooth: Initial skeleton for Three-wire UART (H5) support

This patch adds the initial skeleton for Three-wire UART (H5) support
and hooks it up to the HCI UART framework.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index 2f9b796..142f49c 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -558,6 +558,9 @@
 #ifdef CONFIG_BT_HCIUART_ATH3K
 	ath_init();
 #endif
+#ifdef CONFIG_BT_HCIUART_3WIRE
+	h5_init();
+#endif
 
 	return 0;
 }
@@ -578,6 +581,9 @@
 #ifdef CONFIG_BT_HCIUART_ATH3K
 	ath_deinit();
 #endif
+#ifdef CONFIG_BT_HCIUART_3WIRE
+	h5_deinit();
+#endif
 
 	/* Release tty registration of line discipline */
 	if ((err = tty_unregister_ldisc(N_HCI)))