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>

configs/chiliboard_defconfig

@@ -0,0 +1,44 @@
+CONFIG_ARM=y
+CONFIG_AM33XX=y
+CONFIG_SPL_LIBCOMMON_SUPPORT=y
+CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_SPL_FAT_SUPPORT=y
+CONFIG_SPL_I2C_SUPPORT=y
+CONFIG_SPL_LIBDISK_SUPPORT=y
+CONFIG_SPL_MMC_SUPPORT=y
+CONFIG_SPL_NAND_SUPPORT=y
+CONFIG_SPL_POWER_SUPPORT=y
+CONFIG_SPL_SERIAL_SUPPORT=y
+CONFIG_TARGET_CHILIBOARD=y
+CONFIG_SPL_WATCHDOG_SUPPORT=y
+CONFIG_SPL_STACK_R_ADDR=0x82000000
+CONFIG_FIT=y
+CONFIG_BOOTDELAY=1
+CONFIG_SYS_CONSOLE_INFO_QUIET=y
+CONFIG_SPL=y
+CONFIG_SPL_STACK_R=y
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_BOOTZ=y
+# CONFIG_CMD_IMLS is not set
+CONFIG_CMD_ASKENV=y
+# CONFIG_CMD_FLASH is not set
+CONFIG_CMD_MMC=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_GPIO=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_DM_GPIO=y
+CONFIG_MMC_OMAP_HS=y
+CONFIG_SYS_NS16550=y
+CONFIG_USB=y
+CONFIG_USB_MUSB_HOST=y
+CONFIG_USB_STORAGE=y
+CONFIG_OF_LIBFDT=y