Use promise-flavor if exists and don't try to create it again
Use promise-flavor if exists and don't try to create it again

Change-Id: I02ba76acb02f9785d13ca9bcd61ebe1290fa1cd7
Signed-off-by: jose.lausuch <a4ed9890ad7f6494ac84a749f29a4dc3449a1186@ericsson.com>

opnfv/functest,mywulin/functest,mywulin/functest,opnfv/functest