ARM: kirkwood: Add device-tree for keymile

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/kmsuv31_defconfig b/configs/kmsuv31_defconfig
index 59522e7..7b5b016 100644
--- a/configs/kmsuv31_defconfig
+++ b/configs/kmsuv31_defconfig
@@ -3,6 +3,7 @@
 CONFIG_SYS_TEXT_BASE=0x07d00000
 CONFIG_TARGET_KM_KIRKWOOD=y
 CONFIG_IDENT_STRING="\nKeymile SUV31"
+CONFIG_DEFAULT_DEVICE_TREE="kirkwood-km_kirkwood"
 CONFIG_SYS_EXTRA_OPTIONS="KM_SUV31"
 CONFIG_VERSION_VARIABLE=y
 # CONFIG_DISPLAY_BOARDINFO is not set
@@ -25,6 +26,7 @@
 CONFIG_MTDPARTS_DEFAULT="mtdparts=orion_nand:-(ubi0);"
 CONFIG_CMD_UBI=y
 # CONFIG_CMD_UBIFS is not set
+CONFIG_OF_CONTROL=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_BOOTCOUNT_LIMIT=y
 CONFIG_BOOTCOUNT_RAM=y
@@ -37,4 +39,3 @@
 CONFIG_SPI=y
 CONFIG_KIRKWOOD_SPI=y
 CONFIG_BCH=y
-CONFIG_OF_LIBFDT=y