omap3: cm-t3517: add basic board support

CompuLab cm-t3517 is Computer on Module (CoM) based on AM3517 SoC.
Features: up to 256MB DDR2, up to 512MB NAND, USB hub, mUSB, WiFi, BT,
Analog audio codec, touch screen controller, LED.

Add basic support including:
LED, Serial console, NAND, MMC, GPIO, I2C, 256MB DRAM.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
diff --git a/arch/arm/cpu/armv7/omap3/Kconfig b/arch/arm/cpu/armv7/omap3/Kconfig
index c215404..a029379 100644
--- a/arch/arm/cpu/armv7/omap3/Kconfig
+++ b/arch/arm/cpu/armv7/omap3/Kconfig
@@ -22,6 +22,9 @@
 	bool "CompuLab CM-T3530 and CM-T3730 boards"
 	select SUPPORT_SPL
 
+config TARGET_CM_T3517
+	bool "CompuLab CM-T3517 boards"
+
 config TARGET_DEVKIT8000
 	bool "TimLL OMAP3 Devkit8000"
 	select SUPPORT_SPL
@@ -98,6 +101,7 @@
 source "board/ti/sdp3430/Kconfig"
 source "board/ti/beagle/Kconfig"
 source "board/compulab/cm_t35/Kconfig"
+source "board/compulab/cm_t3517/Kconfig"
 source "board/timll/devkit8000/Kconfig"
 source "board/ti/evm/Kconfig"
 source "board/isee/igep00x0/Kconfig"