mithrandir2k18: rockchip_vop: enable 4K output (torvalds#48)

Author: Mithrandir2k18

drivers/gpu/drm/rockchip/rockchip_vop_reg.c

@@ -642,7 +642,7 @@ static const struct vop_data rk3399_vop_lit = {
 	.feature = VOP_FEATURE_ALPHA_SCALE,
 	.csc_table = &rk3399_csc_table,
 	.max_input = {4096, 8192},
-	.max_output = {2560, 1600},
+	.max_output = {4096, 2160},
 	.intr = &rk3366_vop_intr,
 	.ctrl = &rk3288_ctrl_data,
 	.win = rk3399_vop_lit_win_data,