modify functest config to prepare result folder
modify functest config to prepare result folder

JIRA: FUNCTEST-9

Change-Id: I7ff1452da27dc904f349bcbefbc43a480a3e8843
Signed-off-by: Morgan Richomme <863ecccd07b4194c40ddc432b982c8c67e56599a@orange.com>

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