libcamera: Remove transform from V4L2SubdeviceFormat

Commit 6f6e1bf704 ("libcamera: camera_sensor: Apply flips at
setFormat()") extended the CameraSensor::setFormat() function
to apply vertical/horizontal flips on the sensor based on the
supplied Transform. To pass the Transform to the function the
V4L2SubdeviceFormat structure has been augmented with a Transform
member.

However as the newly added Transform is not used at all in the
V4L2Subdevice class, it should not be part of V4L2SubdeviceFormat.

Fix that by removing the transform field from V4L2SubdeviceFormat
and pass it as an explicit parameter to CameraSensor::setFormat().

Fixes: 6f6e1bf704 ("libcamera: camera_sensor: Apply flips at setFormat())
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

src/libcamera/v4l2_subdevice.cpp

@@ -216,13 +216,6 @@ const std::map<uint32_t, V4L2SubdeviceFormatInfo> formatInfoMap = {
  * resulting color space is acceptable.
  */
 
-/**
- * \var V4L2SubdeviceFormat::transform
- * \brief The transform (vertical/horizontal flips) to be applied on the subdev
- *
- * Default initialized to Identity (no transform).
- */
-
 /**
  * \brief Assemble and return a string describing the format
  * \return A string describing the V4L2SubdeviceFormat