MLK-11791 pxp: reinitialize lut_state to 0 to fix LUT unset issue

because the registers are reset to default value in interrupt handler,
we need reinitialize lut_stat to 0 otherwise the LUT registers will
not be set due to the following logic judgement in pxp_set_lut():

	if ((pxp->lut_state == lut_op) &&
		!(use_cmap && pxp_conf->proc_data.lut_map_updated))
		return;

	lut setting here...

	pxp->lut_state == lut_op;

Signed-off-by: Robby Cai <r63905@freescale.com>
1 file changed