Fix pre_test_hook.sh encryption setting
Fix pre_test_hook.sh encryption setting

Currently option to encrypt parameters is being put in wrong config
section.

Depends-On: I3d8d54fa7441c95fc3de5354f80ce2e7e2ba7054
Change-Id: Iec34be7918358e0d32bab5eb298d2d8b2cce8e0a

cryptickp/heat,srznew/heat,noironetworks/heat,gonzolino/heat,miguelgrinberg/heat,maestro-hybrid-cloud/heat,takeshineshiro/heat,dragorosson/heat,pratikmallya/heat,steveb/heat,openstack/heat,steveb/heat,noironetworks/heat,dragorosson/heat,miguelgrinberg/heat,takeshineshiro/heat,maestro-hybrid-cloud/heat,gonzolino/heat,srznew/heat,openstack/heat,jasondunsmore/heat,dims/heat,dims/heat,pratikmallya/heat,jasondunsmore/heat,cwolferh/heat-scratch,cryptickp/heat,cwolferh/heat-scratch