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>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b0b6f78..fc36723 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1125,6 +1125,7 @@
 source "board/freescale/mx53smd/Kconfig"
 source "board/freescale/s32v234evb/Kconfig"
 source "board/freescale/vf610twr/Kconfig"
+source "board/grinn/chiliboard/Kconfig"
 source "board/gumstix/pepper/Kconfig"
 source "board/h2200/Kconfig"
 source "board/hisilicon/hikey/Kconfig"