arm: mx5: Add M53Menlo board

Add Menlosystems M53 board, based on the M53 SoM.
This board has Ethernet, USB host, USB gadget, UART and LCD on it.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
diff --git a/arch/arm/mach-imx/mx5/Kconfig b/arch/arm/mach-imx/mx5/Kconfig
index 051b15d..29051c4 100644
--- a/arch/arm/mach-imx/mx5/Kconfig
+++ b/arch/arm/mach-imx/mx5/Kconfig
@@ -30,6 +30,11 @@
 	select MX53
 	imply CMD_DM
 
+config TARGET_M53MENLO
+	bool "Support m53menlo"
+	select MX53
+	select SUPPORT_SPL
+
 config TARGET_MX51EVK
 	bool "Support mx51evk"
 	select BOARD_LATE_INIT
@@ -89,6 +94,7 @@
 source "board/ge/mx53ppd/Kconfig"
 source "board/inversepath/usbarmory/Kconfig"
 source "board/k+p/kp_imx53/Kconfig"
+source "board/menlo/m53menlo/Kconfig"
 source "board/technologic/ts4800/Kconfig"
 
 endif