greybus: camera-gb: Remove hardcode for CSI TX number of lanes

The number of CSI TX lanes is hardcoded to 4. Removing
this and start using value from configure stream response.

NOTE: The patch depends on the CSI init change:
"Use GB CSI params to init camera sub-devs"
Signed-off-by: Evgeniy Borisov <eborisov@mm-sol.com>
Reviewed-by: Gjorgji Rosikopulos <grosikopulos@mm-sol.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/camera.c

@@ -304,7 +304,7 @@ static int gb_camera_configure_streams(struct gb_camera *gcam,
 	if (nstreams) {
 		csi_cfg.csi_id = 1;
 		csi_cfg.flags = 0;
-		csi_cfg.num_lanes = 4;
+		csi_cfg.num_lanes = resp->num_lanes;
 		csi_cfg.bus_freq = cpu_to_le32(960000000);
 		csi_cfg.lines_per_second = resp->lines_per_second;
 		ret = gb_hd_output(gcam->connection->hd, &csi_cfg,