drm/msm: disable default drm msm display compilation

Drm msm display depends heavily on sde folder. Until those
changes are ready to be merged in full, drm msm compilation
will be disabled to avoid compilation failures.

Change-Id: I99a04445edc7232d7b03fc7d514bcb14637c9b0b
Signed-off-by: Samantha Tran <samtran@codeaurora.org>