ipq806x: set IMAGES in Device/Default definition

The Device/Default definition sets a default IMAGE/sysupgrade.bin,
but does not enable it by setting IMAGES. This is not consistent,
and has led to IMAGES being defined at various other places in the
file.

Thus, this patch consolidates the default value for IMAGES by putting
it in Device/Default. Since it's still overwritten where necessary,
this patch is cosmetic.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

target/linux/ipq806x/image/Makefile

@@ -21,6 +21,7 @@ define Device/Default
 	KERNEL_LOADADDR = 0x42208000
 	DEVICE_DTS = $$(SOC)-$(lastword $(subst _, ,$(1)))
 	SUPPORTED_DEVICES := $(subst _,$(comma),$(1))
+	IMAGES := sysupgrade.bin
 	IMAGE/sysupgrade.bin = sysupgrade-tar | append-metadata
 	IMAGE/sysupgrade.bin/squashfs :=
 endef
@@ -57,7 +58,7 @@ define Device/DniImage
 	NETGEAR_BOARD_ID :=
 	NETGEAR_HW_ID :=
 	UBINIZE_OPTS := -E 5
-	IMAGES := factory.img sysupgrade.bin
+	IMAGES += factory.img
 	IMAGE/factory.img := append-kernel | pad-offset $$$$(BLOCKSIZE) 64 | append-uImage-fakehdr filesystem | pad-to $$$$(KERNEL_SIZE) | append-ubi | netgear-dni
 	IMAGE/sysupgrade.bin := append-kernel | pad-offset $$$$(BLOCKSIZE) 64 | append-uImage-fakehdr filesystem | sysupgrade-tar kernel=$$$$@ | append-metadata
 endef
@@ -67,7 +68,7 @@ define Device/TpSafeImage
 	KERNEL = kernel-bin | append-dtb | uImage none
 	KERNEL_NAME := zImage
 	TPLINK_BOARD_ID :=
-	IMAGES := factory.bin sysupgrade.bin
+	IMAGES += factory.bin
 	IMAGE/factory.bin := append-rootfs | tplink-safeloader factory
 	IMAGE/sysupgrade.bin := append-rootfs | tplink-safeloader sysupgrade | append-metadata
 endef
@@ -76,7 +77,7 @@ define Device/ZyXELImage
 	KERNEL_SUFFIX := -uImage
 	KERNEL = kernel-bin | append-dtb | uImage none | pad-to $$(KERNEL_SIZE)
 	KERNEL_NAME := zImage
-	IMAGES := factory.bin sysupgrade.bin
+	IMAGES += factory.bin
 	IMAGE/factory.bin := append-rootfs | pad-rootfs | pad-to $$$$(BLOCKSIZE) | zyxel-ras-image separate-kernel
 	IMAGE/sysupgrade.bin/squashfs := append-rootfs | pad-to $$$$(BLOCKSIZE) | sysupgrade-tar rootfs=$$$$@ | append-metadata
 endef
@@ -90,7 +91,6 @@ define Device/buffalo_wxr-2533dhp
 	PAGESIZE := 2048
 	IMAGE_SIZE := 65536k
 	KERNEL_IN_UBI := 1
-	IMAGES := sysupgrade.bin
 	IMAGE/sysupgrade.bin := append-rootfs | buffalo-rootfs-cksum | \
 		sysupgrade-tar rootfs=$$$$@ | append-metadata
 	DEVICE_PACKAGES := ath10k-firmware-qca99x0-ct
@@ -121,7 +121,7 @@ define Device/linksys_ea8500
 	BOARD_NAME := ea8500
 	SUPPORTED_DEVICES += ea8500
 	UBINIZE_OPTS := -E 5
-	IMAGES := factory.bin sysupgrade.bin
+	IMAGES += factory.bin
 	IMAGE/factory.bin := append-kernel | pad-to $$$$(KERNEL_SIZE) | append-ubi
 	DEVICE_PACKAGES := ath10k-firmware-qca99x0-ct
 endef
@@ -134,7 +134,6 @@ define Device/nec_wg2600hp
 	SOC := qcom-ipq8064
 	BLOCKSIZE := 64k
 	BOARD_NAME := wg2600hp
-	IMAGES := sysupgrade.bin
 	IMAGE/sysupgrade.bin := append-kernel | append-rootfs | pad-rootfs | append-metadata
 	DEVICE_PACKAGES := ath10k-firmware-qca99x0-ct
 endef
@@ -295,7 +294,6 @@ define Device/tplink_vr2600v
 	BOARD_NAME := vr2600v
 	SUPPORTED_DEVICES += vr2600v
 	DEVICE_PACKAGES := ath10k-firmware-qca99x0-ct
-	IMAGES := sysupgrade.bin
 	IMAGE/sysupgrade.bin := pad-extra 512 | append-kernel | pad-to $$$$(KERNEL_SIZE) | append-rootfs | pad-rootfs | append-metadata
 endef
 TARGET_DEVICES += tplink_vr2600v