[Bluetooth] Add HCI device identifier for SDIO cards

This patch assigns the next free HCI device identifier to Bluetooth
devices based on the SDIO interface.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index b2bdb1a..fde08f4 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -44,12 +44,13 @@
 #define HCI_NOTIFY_VOICE_SETTING	3
 
 /* HCI device types */
-#define HCI_VHCI	0
+#define HCI_VIRTUAL	0
 #define HCI_USB		1
 #define HCI_PCCARD	2
 #define HCI_UART	3
 #define HCI_RS232	4
 #define HCI_PCI		5
+#define HCI_SDIO	6
 
 /* HCI device quirks */
 enum {