Fix broken RPM names due to static _rpmfilename

Makefile

@@ -145,7 +145,7 @@ rpm: rpmcommon
 	--define "_srcrpmdir %{_topdir}" \
 	--define "_specdir $(RPMSPECDIR)" \
 	--define "_sourcedir %{_topdir}" \
-	--define "_rpmfilename $(RPMNVR).%%{ARCH}.rpm" \
+	--define "_rpmfilename %%{NAME}-%%{VERSION}-%%{RELEASE}.%%{ARCH}.rpm" \
 	-ba rpm-build/$(NAME).spec
 	@rm -f rpm-build/$(NAME).spec
 	@echo "#############################################"