Created a bus/device API that allows for the ROM prefix to specify an

initial device, and will also allow for e.g. a device menu to be presented
to the user.

src/include/dhcp.h

@@ -0,0 +1,12 @@
+#ifndef DHCP_H
+#define DHCP_H
+
+#include "stdint.h"
+
+struct dhcp_dev_id {
+	uint8_t		bus_type;
+	uint16_t	vendor_id;
+	uint16_t	device_id;
+} __attribute__ (( packed ));
+
+#endif /* DHCP_H */