Avoid appending to srpm logs

Mock will append the binary rpm build logs to the srpm logs, but this is
confusing. After the srpm finishes building, rename the log files to
avoid this behavior.

Signed-off-by: Patrick McCarty <patrick.mccarty@intel.com>

Makefile.common

@@ -118,6 +118,8 @@ shell:
 $(SRPMFILE): $(SPECFILE) $(__allsources) localreponotice
 	@$(MAKE) spdxcheck
 	$(MOCK) --buildsrpm --source=./ --spec=$(SPECFILE) --result=results/ --no-cleanup-after --uniqueext=$(PKG_NAME)
+	mv results/root.log results/srpm-root.log
+	mv results/build.log results/srpm-build.log
 
 # Do a git fetch and a git rebase to apply local commits on top of latest
 # commits from the remote. A git fetch/rebase is used rather than a git pull so