mvebu: move FitImage recipe to generic image Makefile

Move the Device/FitImage recipe to the generic image Makefile to avoid
duplicating it for other subtargets.

Will be used for uDPU/eDPU.

Signed-off-by: Robert Marko <[email protected]>

target/linux/mvebu/image/Makefile

@@ -149,6 +149,12 @@ define Build/uDPU-firmware
 		-f $(KDIR_TMP)/$(DEVICE_IMG_PREFIX)-firmware.tgz -C $@-fw .
 endef
 
+define Device/FitImage
+  KERNEL_SUFFIX := -uImage.itb
+  KERNEL = kernel-bin | gzip | fit gzip $$(KDIR)/image-$$(DEVICE_DTS).dtb
+  KERNEL_NAME := Image
+endef
+
 define Device/Default
   PROFILES := Default
   DEVICE_DTS = $$(SOC)-$(lastword $(subst _, ,$(1)))

target/linux/mvebu/image/cortexa72.mk

@@ -2,12 +2,6 @@ define Build/append-bootscript
 	cat [email protected] >> $@
 endef
 
-define Device/FitImage
-  KERNEL_SUFFIX := -uImage.itb
-  KERNEL = kernel-bin | gzip | fit gzip $$(KDIR)/image-$$(DEVICE_DTS).dtb
-  KERNEL_NAME := Image
-endef
-
 define Device/UbiFit
   KERNEL_IN_UBI := 1
   IMAGES := factory.ubi sysupgrade.bin