nfs: move initscripts to src/initscripts/packages and use new macro

Signed-off-by: Jonatan Schlag <jonatan.schlag@ipfire.org>

lfs/nfs

@@ -98,5 +98,7 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 
 	cd $(DIR_APP) && make $(MAKETUNING) $(EXTRA_MAKE)
 	cd $(DIR_APP) && make install
+	#install initscripts
+	$(call INSTALL_INITSCRIPT,nfs-server)
 	@rm -rf $(DIR_APP)
 	@$(POSTBUILD)