drm/mediatek: Fix wrong dither settings

The width and height arguments in the cmdq packet for mtk_dither_config()
are inverted. We fix the incorrect width and height for dither settings
in mtk_dither_config().

Fixes: 73d3724 ("drm/mediatek: Adjust to the alphabetic order for mediatek-drm")
Co-developed-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20220908141205.18256-1-allen-kh.cheng@mediatek.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>

Author: kuanhsuncheng

drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c

@@ -157,7 +157,7 @@ static void mtk_dither_config(struct device *dev, unsigned int w,
 {
 	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
 
-	mtk_ddp_write(cmdq_pkt, h << 16 | w, &priv->cmdq_reg, priv->regs, DISP_REG_DITHER_SIZE);
+	mtk_ddp_write(cmdq_pkt, w << 16 | h, &priv->cmdq_reg, priv->regs, DISP_REG_DITHER_SIZE);
 	mtk_ddp_write(cmdq_pkt, DITHER_RELAY_MODE, &priv->cmdq_reg, priv->regs,
 		      DISP_REG_DITHER_CFG);
 	mtk_dither_set_common(priv->regs, &priv->cmdq_reg, bpc, DISP_REG_DITHER_CFG,