[BGPVPN] Bugfix for /etc/tempest/ no there
[BGPVPN] Bugfix for /etc/tempest/ no there

Change-Id: I0dbbbf486e97c202eba2b4b38d877a836942759b

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