pxa2xx_lcd: restore updating of display Recently PXA2xx lcd have stopped to be updated incrementally (picture frozen). This patch fixes that by passing non min/max x/y, but rather (correctly) x/y and w/h. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>