[source] ipq806x: fix zyxel image build error

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/36166661268446b49499e89dc1364bc52ad133c2

commit 36166661268446b49499e89dc1364bc52ad133c2
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Fri Nov 4 12:57:16 2016 +0100

    ipq806x: fix zyxel image build error
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 target/linux/ipq806x/image/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/linux/ipq806x/image/Makefile b/target/linux/ipq806x/image/Makefile
index 3bee923..fc8d1cf 100644
--- a/target/linux/ipq806x/image/Makefile
+++ b/target/linux/ipq806x/image/Makefile
@@ -94,7 +94,7 @@ define Device/ZyXELImage
 	PROFILES += $$(DEVICE_NAME)
 	FILESYSTEMS := squashfs
 	KERNEL_SUFFIX := -uImage
-	KERNEL = kernel-bin | append-dtb | uImage none | pad-to $$$${KERNEL_SIZE}
+	KERNEL = kernel-bin | append-dtb | uImage none | pad-to $${KERNEL_SIZE}
 	KERNEL_NAME := zImage
 	IMAGES := sysupgrade.tar mmcblk0p5-rootfs.bin mmcblk0p4-kernel.bin
 	IMAGE/sysupgrade.tar/squashfs := append-rootfs | pad-to $$$${BLOCKSIZE} | sysupgrade-tar rootfs=$$$$@