drm/msm/disp/dpu1: add intf offsets for SC7280 target

Interface block offsets are different for SC7280 family
when compared to existing targets. These offset values
are used to access the interface irq registers. This
change adds proper interface offsets for SC7280 target.

Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
Link: https://lore.kernel.org/r/1617685792-14376-3-git-send-email-mkrishn@codeaurora.org
Signed-off-by: Rob Clark <robdclark@chromium.org>