arm: kirkwood: add support for Synology DS109 board

Synology DS109 is based on MV88F6281. The code
is based on Dreamplug code with modificatons
from Synologys open source repository.

Signed-off-by: Walter Schweizer <swwa@users.sourceforge.net>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/configs/ds109_defconfig b/configs/ds109_defconfig
new file mode 100644
index 0000000..34a4673
--- /dev/null
+++ b/configs/ds109_defconfig
@@ -0,0 +1,16 @@
+CONFIG_ARM=y
+CONFIG_KIRKWOOD=y
+CONFIG_TARGET_DS109=y
+CONFIG_HUSH_PARSER=y
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+CONFIG_CMD_SF=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_USB=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_PING=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_BAR=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SYS_NS16550=y