virtIO: fix VIRTIO_CONFIG_STATUS_DRIVER status bit definition
This definition was wrongly including also the ACK status bit.
This fix will allow to check for unclaimed virtIO devices by
AND-ing a device status byte with VIRTIO_CONFIG_STATUS_DRIVER.
@@ -24,7 +24,7 @@ typedef closure_type(vqfinish, void, u64);
/* Status byte for guest to report progress. */
#define VIRTIO_CONFIG_STATUS_RESET 0x00
#define VIRTIO_CONFIG_STATUS_ACK 0x01
-#define VIRTIO_CONFIG_STATUS_DRIVER 0x03
+#define VIRTIO_CONFIG_STATUS_DRIVER 0x02
#define VIRTIO_CONFIG_STATUS_DRIVER_OK 0x04
#define VIRTIO_CONFIG_STATUS_FEATURE 0x08
#define VIRTIO_CONFIG_STATUS_FAILED 0x80
