Merge branch 'archit/set-timing-work'

An overlay manager's timings (the manager size, and blanking parameters
if an LCD manager) are DISPC shadow registers, and they should hence
follow the correct programming model.

This series makes the video timings an extra_info parameter in manager's
private data. The interface drivers now apply the timings instead of
directly writing to registers.

This change also prevents the need to use display resolution for overlay
checks, hence making some of the APPLY functions less dependent on the
display. Some DISPC functions that needed display width can also use
these privately stored timings.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>