Create VNF user with admin role
Create VNF user with admin role

Change-Id: I9cdeedd90cacfdae10c498580493106a6cb727fb
Signed-off-by: Alex Yang <8f79ad8057698d8997f8703a63d91b00d6ba955c@zte.com.cn>

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