jenkins: scripts: propose_update: Pass project directory as first argument
jenkins: scripts: propose_update: Pass project directory as first argument

The sync_openstack_ansible_common_files.sh expects the OSA project to be
in the first argument. Fixes the following problem:

2017-06-07 12:23:50.415740 | + update openstack-ansible-galera_client
2017-06-07 12:23:50.415772 | + bash /usr/local/jenkins/slave_scripts/sync_openstack_ansible_common_files.sh
2017-06-07 12:23:50.418144 | /usr/local/jenkins/slave_scripts/sync_openstack_ansible_common_files.sh: line 20: 1: unbound variable

Change-Id: Ic64e7984b4ff888fa56b11239477834a0d972dfb

openstack-infra/project-config,openstack-infra/project-config