Install initscript with the new macro

- Move the cups initscript to src/initscripts/packages

lfs/cups

@@ -91,7 +91,8 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 
 	cd $(DIR_APP) && ln -v -sf /usr/bin/smbspool /usr/lib/cups/backend/smb
 
-	install -v -m 754 $(DIR_SRC)/src/initscripts/init.d/packages/cups /etc/rc.d/init.d
+	# install initscript
+	$(call INSTALL_INITSCRIPT,cups)
 	cp -fv $(DIR_SRC)/config/cups/cupsd.conf /var/ipfire/cups/
 
 	@rm -rf $(DIR_APP)