drm/msm: update framebuffer pixel formats, modifier & num_planes

This change updates the DRM driver ported from 4.9 to align with
the corresponding DRM framework changes.  This includes using the
new drm_format_info structure for the pixel format, depth, number
of planes, bit's per pixel, and horizontal/vertical subsumpling.
Also, in 4.9 "modifiers" was an array which could contain a unique
value per plane.  This is now deprecated in favor of using a single
modifier for all planes.  Any formats which require the old
functionality should enumerate a new modifier for each unique
combination of modifiers needed.

Change-Id: I1c6fb29aef5f7a8d2bcd646c70059ba1251be721
Signed-off-by: Steve Cohen <cohens@codeaurora.org>