uboot-imx

board/chiliboard: Add support for chiliBoard

chiliBoard is a development board which uses chiliSOM as its base.

Hardware specification:
 * chiliSOM (TI AM335x, DRAM, NAND)
 * Ethernet PHY (id 0)
 * USB host (usb1)
 * MicroSD slot (mmc0)

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Reviewed-by: Tom Rini <trini@konsulko.com>