drm/msm/sde: set encoder role at display probe time

Base the encoder's master/slave role on display probe.
Move interface select programming fully to the mdp_top block.
Fix vblank_en race condition in CRTC.

Change-Id: I4a26509a0ac28e0926b8bea90c5aaa5707a37e21
Signed-off-by: Lloyd Atkinson <latkinso@codeaurora.org>
8 files changed