ARM: kirkwood: Add device-tree for dns325

Import the dts files from Linux 4.17 and enable CONFIG_OF_CONTROL.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/configs/dns325_defconfig b/configs/dns325_defconfig
index f64038d..f0ed209 100644
--- a/configs/dns325_defconfig
+++ b/configs/dns325_defconfig
@@ -3,6 +3,7 @@
 CONFIG_SYS_TEXT_BASE=0x600000
 CONFIG_TARGET_DNS325=y
 CONFIG_IDENT_STRING="\nD-Link DNS-325"
+CONFIG_DEFAULT_DEVICE_TREE="kirkwood-dns325"
 CONFIG_BOOTDELAY=3
 CONFIG_CONSOLE_MUX=y
 # CONFIG_DISPLAY_BOARDINFO is not set
@@ -23,6 +24,7 @@
 CONFIG_MTDPARTS_DEFAULT="mtdparts=orion_nand:896k(u-boot),128k(u-boot-env),5m(kernel),-(rootfs)"
 CONFIG_CMD_UBI=y
 CONFIG_ISO_PARTITION=y
+CONFIG_OF_CONTROL=y
 CONFIG_ENV_IS_IN_NAND=y
 CONFIG_MVSATA_IDE=y
 # CONFIG_MMC is not set
@@ -32,4 +34,3 @@
 CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_STORAGE=y
-CONFIG_OF_LIBFDT=y