ipq40xx: compress kernel for Magic 2 WiFi next

The bootcmd limits the kernel to 4 MiB which is
exceeded when using Device/FitImage. Device/FitzImage
reduces the size to around 3 MiB.

Signed-off-by: Thomas Bong <thomas.bong@devolo.de>

target/linux/ipq40xx/image/generic.mk

@@ -371,7 +371,7 @@ endef
 TARGET_DEVICES += compex_wpj428
 
 define Device/devolo_magic-2-wifi-next
-	$(call Device/FitImage)
+	$(call Device/FitzImage)
 	DEVICE_VENDOR := devolo
 	DEVICE_MODEL := Magic 2 WiFi next
 	SOC := qcom-ipq4018
@@ -387,7 +387,6 @@ define Device/devolo_magic-2-wifi-next
 	IMAGE/sysupgrade.bin := append-kernel | append-rootfs | pad-rootfs | append-metadata
 	DEFAULT := n
 endef
-# Missing DSA Setup
 TARGET_DEVICES += devolo_magic-2-wifi-next
 
 define Device/dlink_dap-2610
@@ -590,7 +589,7 @@ define Device/glinet_gl-b1300
 	DEVICE_MODEL := GL-B1300
 	BOARD_NAME := gl-b1300
 	SOC := qcom-ipq4029
-	KERNEL_SIZE := 4096k
+	KERNEL_SIZE := 1k
 	IMAGE_SIZE := 26624k
 	IMAGE/sysupgrade.bin := append-kernel |append-rootfs | pad-rootfs | append-metadata
 endef