drm/msm: remove unused code from compilation chain

Remove unused mdp4, mdp5, dsi, hdmi, hdcp, etc. files
from compilation chain.

Change-Id: I46c50b5069e6f1227be16cfe410b721a9bf29558
Signed-off-by: Dhaval Patel <pdhaval@codeaurora.org>
4 files changed