msm:disp:dpu1: add UBWC support for display on SC7180

Add UBWC global configuration for display on
SC7180 target.

Signed-off-by: Kalyan Thota <kalyan_t@codeaurora.org>
Tested-by: Douglas Anderson <dianders@chromium.org>
Fixes: 73bfb790 ("msm:disp:dpu1: setup display datapath for SC7180 target")
Signed-off-by: Rob Clark <robdclark@chromium.org>