Pin tempest to good hash when installed from source
Pin tempest to good hash when installed from source

[1] change in tempest needs keystone change [2], for
ubuntu keystone is installed from package while tempest
is installed from source. Until keystone commit is included
in ubuntu keystone package, let's pin tempest to good commit
when installed from source.

[1] https://review.openstack.org/#/c/525244/
[2] https://review.openstack.org/#/c/605851/

Change-Id: I995310d1277a79f8bf231e149c7bd6a9cc49bfba

openstack/puppet-openstack-integration,openstack/puppet-openstack-integration,openstack/puppet-openstack-integration