ar71xx/image: remove duplicated rootfs in new tplink initramfs images

The new building code included the rootfs twice when building tplink initramfs images.
To make it more readable move initramfs into an own build step
Build/mktplinkfw-initramfs.

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>

SVN-Revision: 45491

target/linux/ar71xx/image/Makefile

@@ -56,10 +56,20 @@ define Build/mktplinkfw
 		-k $(word 1,$^) \
 		-r $@ \
 		-o $@.new \
+		-j -X 0x40000 \
 		-a $(call rootfs_align,$(FILESYSTEM)) \
-		$(if $(findstring sysupgrade,$1),-j -X 0x40000 -s) \
-		$(if $(findstring factory,$1),-j -X 0x40000) \
-		$(if $(findstring initramfs,$1),-s -c)
+		$(if $(findstring sysupgrade,$1),-s)
+	@mv $@.new $@
+endef
+
+# -c combined image
+define Build/mktplinkfw-initramfs
+	$(STAGING_DIR_HOST)/bin/mktplinkfw \
+		-H $(TPLINK_HWID) -W $(TPLINK_HWREV) -F $(TPLINK_FLASHLAYOUT) -N OpenWrt -V $(REVISION) \
+		-k $@ \
+		-o $@.new \
+		-s \
+		-c
 	@mv $@.new $@
 endef
 
@@ -138,7 +148,7 @@ TARGET_DEVICES += wndr3700 wndr3700v2 wndr3800 wndr3800ch wndrmac wndrmacv2
 define Device/tplink
   TPLINK_HWREV := 0x1
   KERNEL := kernel-bin | patch-cmdline | lzma
-  KERNEL_INITRAMFS := kernel-bin | patch-cmdline | lzma | mktplinkfw initramfs
+  KERNEL_INITRAMFS := kernel-bin | patch-cmdline | lzma | mktplinkfw-initramfs
   IMAGES := sysupgrade.bin factory.bin
   IMAGE/sysupgrade.bin := append-rootfs | mktplinkfw sysupgrade
   IMAGE/factory.bin := append-rootfs | mktplinkfw factory