tests: camera-sensor: Test using invalid media bus format

Linux commit b6c61a6c37317efd ("media: vimc: propagate pixel format in
the stream") changes the sensor in the vimc media graph to accept all
media bus format currently described in Linux. This prevents the
camera-sensor test case to verify that a supported media bus format is
selected from a list of defined formats, fix this by using an invalid
media bus format in the test case.

Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

test/camera-sensor.cpp

@@ -83,7 +83,8 @@ protected:
 			return TestFail;
 		}
 
-		V4L2SubdeviceFormat format = sensor_->getFormat({ MEDIA_BUS_FMT_UYVY8_2X8,
+		/* Use an invalid format and make sure it's not selected. */
+		V4L2SubdeviceFormat format = sensor_->getFormat({ 0xdeadbeef,
 								  MEDIA_BUS_FMT_SBGGR10_1X10,
 								  MEDIA_BUS_FMT_BGR888_1X24 },
 								Size(1024, 768));