Bluetooth: hci_mrvl: Add serdev support

This adds serdev support to the Marvell hci uart driver. Only basic
serdev support, none of the fancier features like regulator or enable
GPIO support is added for now.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index b9c34ff..a3fafd7 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -237,6 +237,7 @@
 config BT_HCIUART_MRVL
 	bool "Marvell protocol support"
 	depends on BT_HCIUART
+	depends on BT_HCIUART_SERDEV
 	select BT_HCIUART_H4
 	help
 	  Marvell is serial protocol for communication between Bluetooth