uboot-imx

MLK-18945-9 imx8mm: Update SOC codes to support LCDIF

Enable the video PLL (594Mhz) and clocks in displaymix. Add the LCDIF clock
set interface to change its dot clock rate.
Update registers header file for LCDIF base address.

Signed-off-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit 3c27bc4bfa35dbebee2b5797c9137a2257946eca)
(cherry picked from commit 65bac60d03335a44cc0a7a0afab0e638a6ba53d6)