drm/msm/sde: move auto-refresh disable to commit phase

Boot-loader enables auto-refresh and it is disabled during
SDE driver probe in current SDE driver design. It should be
moved to commit phase to avoid cpu sleep and interrupt wait
sequence during SDE driver probe. This patch cleans up
auto-refrsh disable logic from resource manager and uses
existing autorefresh disable sequence logic from command mode
physical encoder.

Change-Id: I9d4ee8ea800ab7b4438c830cfb987957aaef7ff0
Signed-off-by: Prabhanjan Kandula <pkandula@codeaurora.org>