Attempt to set up LCD (WIP)
Make pr_debug level2 instead of 0; this macro is very noisy.
Disable SPI FLASH.
Enable NAND FLASH.
Put boot env settings back to normal.
Change chip_delay to 40usec; needed for UIB V1 timings (should revisit in V2).
Wrap gpmi nand code with CONFIG_NAND_MXS.
Added SD1 as mmc device 2.
Added SD1 as mmc device #2