arm: Add support for LEGO MINDSTORMS EV3

This is based on the davinci da850evm. It can boot from either the
on-board 16MB flash or from a microSD card. It also reads board
information from an I2C EEPROM.

The EV3 itself initally boots from write-protected EEPROM, so no
u-boot SPL is needed.

Signed-off-by: David Lechner <david@lechnology.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index a8d3e2f..5d1c5c5 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -22,6 +22,9 @@
 config TARGET_CALIMAIN
 	bool "Calimain board"
 
+config TARGET_LEGOEV3
+	bool "LEGO MINDSTORMS EV3"
+
 endchoice
 
 config SYS_SOC
@@ -31,5 +34,6 @@
 source "board/davinci/da8xxevm/Kconfig"
 source "board/davinci/ea20/Kconfig"
 source "board/omicron/calimain/Kconfig"
+source "board/lego/ev3/Kconfig"
 
 endif