Fix KeyError of OS_AUTH_URL
Fix KeyError of OS_AUTH_URL

Change-Id: Iaaa657ebb8ed017429b640ffaaf03b6d204e887a
Signed-off-by: Linda Wang <81613bebe84fa394bbc7c5cc1c21989c9bff2c52@huawei.com>

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