ramips: move zyimage define to common Makefile

Signed-off-by: Maxim Anisimov <[email protected]>

target/linux/ramips/image/Makefile

@@ -147,6 +147,10 @@ define Build/mkdlinkfw-factory
 	mv [email protected] $@
 endef
 
+define Build/zyimage
+	$(STAGING_DIR_HOST)/bin/zyimage $(1) $@
+endef
+
 #
 # The real magic happens inside these templates
 #

target/linux/ramips/image/mt7620.mk

@@ -16,10 +16,6 @@ define Build/elecom-header
 		-f $@ -C $(KDIR) v_0.0.0.bin v_0.0.0.md5
 endef
 
-define Build/zyimage
-	$(STAGING_DIR_HOST)/bin/zyimage $(1) $@
-endef
-
 define Device/ai-br100
   DTS := AI-BR100
   IMAGE_SIZE := 7936k