arm: armada-xp: Add basic support for the Marvell DB-MV784MP-GP board

This patch adds basic support for the Marvell DB-MV784MP-GP evaulation
board. This is the first board that uses the recently created
Armada XP 78460 SoC support.

Signed-off-by: Stefan Roese <sr@denx.de>
Tested-by: Luka Perkov <luka@openwrt.org>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 72558b8..13ab831 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -141,6 +141,9 @@
 config KIRKWOOD
 	bool "Marvell Kirkwood"
 
+config TARGET_DB_MV784MP_GP
+	bool "Support db-mv784mp-gp"
+
 config TARGET_DEVKIT3250
 	bool "Support devkit3250"
 
@@ -567,6 +570,7 @@
 source "board/BuS/vl_ma2sc/Kconfig"
 source "board/CarMediaLab/flea3/Kconfig"
 source "board/Marvell/aspenite/Kconfig"
+source "board/Marvell/db-mv784mp-gp/Kconfig"
 source "board/Marvell/dkb/Kconfig"
 source "board/Marvell/gplugd/Kconfig"
 source "board/afeb9260/Kconfig"