ar71xx/image: add options argument to mktplinkfw step

Allow to pass extra arguments to mktplinkfw step. Some board requires
an extra argument to create a valid image.

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

SVN-Revision: 47174

target/linux/ar71xx/image/Makefile

@@ -38,13 +38,16 @@ define Build/netgear-uImage
 endef
 
 # combine kernel and rootfs into one image
+# mktplinkfw <type> <optional extra arguments to mktplinkfw binary>
+# <type> is "sysupgrade" or "factory"
+#
 # -a align the rootfs start on an <align> bytes boundary
 # -j add jffs2 end-of-filesystem markers
 # -s strip padding from end of the image
 # -X reserve <size> bytes in the firmware image (hexval prefixed with 0x)
 define Build/mktplinkfw
 	-$(STAGING_DIR_HOST)/bin/mktplinkfw \
-		-H $(TPLINK_HWID) -W $(TPLINK_HWREV) -F $(TPLINK_FLASHLAYOUT) -N OpenWrt -V $(REVISION) \
+		-H $(TPLINK_HWID) -W $(TPLINK_HWREV) -F $(TPLINK_FLASHLAYOUT) -N OpenWrt -V $(REVISION) $2 \
 		-k $(word 1,$^) \
 		-r $@ \
 		-o $@.new \
@@ -64,10 +67,12 @@ define Build/mktplinkfw-chn-v2
 		$(if $(findstring sysupgrade,$1),-s) && mv $@.new $@ || rm -f $@
 endef
 
+# mktplinkfw-initramfs <optional extra arguments to mktplinkfw binary>
+#
 # -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) \
+		-H $(TPLINK_HWID) -W $(TPLINK_HWREV) -F $(TPLINK_FLASHLAYOUT) -N OpenWrt -V $(REVISION) $2 \
 		-k $@ \
 		-o $@.new \
 		-s -S \