video: Add SHARP LQ084S3LG01 LCD support on P1022DS

The SHARP LQ084S3LG01 is a TFT LCD used on the P1022DS (revision "C") board.
This device only supports 800x600 resolution, so if that resolution is selected,
assume that this is the device.  The device is attached to the LVDS port
on the P1022DS board.

The existing 800x600 entry (for the PDM360NG board) is actually 800x480,
so we fix that.  To support two different 800x resolutions, the Y-resolution
is now passed to fsl_diu_init() and both values are used to pick the proper
fb_videomode structure.

The data for the 800x600 video mode is originally from Jiang Yutang.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Jiang Yutang <b14898@freescale.com>