[ALPS08094450] disp: disable pu if lcm_update_roi_cmdq is null

1.disable pu if lcm_update_roi_cmdq is null.
2.move mtk_ddp_comp_partial_update(dsc_comp)
  above dsi_comp for fix dsi underrun hang issue.
3.remove redundant ABILITY_PARTIAL_UPDATE setting.

MTK-Commit-Id: f0a48ce37bed9ee2dc956cc7c48b24e609f366e5

Signed-off-by: jj chen <jj.chen@mediatek.com>
CR-Id: ALPS08094450
Feature: display_mobile
Change-Id: I535844909d9e37a2a990f07660839be87606520d