Bluetooth: Add defines for SPI and I2C

Extend the set of possible HCI bus types with SPI and I2C.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 5d38d98..eefcf3e 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -61,6 +61,8 @@
 #define HCI_RS232	4
 #define HCI_PCI		5
 #define HCI_SDIO	6
+#define HCI_SPI		7
+#define HCI_I2C		8
 
 /* HCI controller types */
 #define HCI_BREDR	0x00