drm/msm/dp: fix controller state update during disconnect event

Fix the controller state update during the disconnect event by
removing the check for controller abort status. This allows
programming and transition of the controller into idle state,
which is necessary for subsequent connection events.

Change-Id: I7edc5b9d87db818f42883752ae1a5b1c8dd21231
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>