drm/msm/sde: reconstruct the connector info for sde_crtc_state

Avoid the possibility of invalid connector access from sde_crtc_state
by reconstructing the connector information into sde_crtc_state for
each atomic_check phase.

Change-Id: I5f151e91bc0383c297b91b0b1ff752889d4dcfcc
Signed-off-by: Govinda Rajulu Chenna <gchenna@codeaurora.org>