qa/1188: filter out "built without support for dmstats metrics" warnings
qa/1188: filter out "built without support for dmstats metrics" warnings

This is not unexpected on some platforms, but the test should run OK
(unlike 657 where a similar issue is handled with _notrun).

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp