The cell sizes must be cast to integers as the parameters that
were passed in may be floats.
Bug: https://github.com/raspberrypi/libcamera/issues/260
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Fixes: 36ba0e5515 ("utils: raspberrypi: ctt: Fix NaNs in lens shading tables")
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>