allow the mapphone-panel sometime to reset on poweron

this might fix the dead panel sometimes on bootup

Change-Id: I2af174e07427c9979eb615dfbc0b7f57f19554c7
integrate omapzoom-changes into drivers/video/omap2/dss/dispc.c

this adds back some changes from omapzoom which were lost during
the moto-merge and could prevent the panel from resuming reliably.

Change-Id: I6c19391cd96b8d85be83917809a789450d0910ee
enable setting DSS max latency constraint

this no longer causes panic due to the omapzoom-sync

Change-Id: I7cc16a1cc88a7b2770e7c075a7efb74a2c1e5cb5