kirkwood: enable initramfs images by default

Signed-off-by: Felix Fietkau <[email protected]>

target/linux/kirkwood/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 ARCH:=arm
 BOARD:=kirkwood
 BOARDNAME:=Marvell Kirkwood
-FEATURES:=usb nand squashfs
+FEATURES:=usb nand squashfs ramdisk
 CPU_TYPE:=xscale
 MAINTAINER:=Luka Perkov <[email protected]>