small image builder change

git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@1764 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/imagebuilder/Makefile

@@ -39,4 +39,7 @@ build:
 	for package in `cat lists/$(LIST).$(BOARD)-$(KERNEL)`; do \
 		$(IPKG_KERNEL) install `ls packages/$${package}_*`; \
 	done
+	if [ -d ./files ]; then \
+		cp -fpR ./files/* $(LINUX_BUILD_DIR)/root; \
+	fi
 	$(MAKE) -S -C image KERNEL="$(KERNEL)" BOARD="$(BOARD)" BIN_DIR="$(BIN_DIR)/$(LIST)" install