drm: renesas: shmobile: Improve shmob_drm_format_info table

drm: renesas: shmobile: Improve shmob_drm_format_info table

Improve the table containing hardware information related to the
supported plane formats:
  1. Move (part of) the overlay format register settings from multiple
     switch() statements spread across the code into the table, like is
     already done for the primary plane register settings,
  2. Remove the .yuv field, as that information can easily be extracted
     from the register settings using a new helper macro,
  3. Shrink and move the .bpp field to reduce table size.

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/b41f755e80ffe5fb4adbb2d8f96f2073de5c33bc.1694767209.git.geert+renesas@glider.be