Refine 'become: yes' statement.
Refine 'become: yes' statement.

In jenkins_ssh.yml, there is several 'become:' statement and one
'become_user:' misses 'become: yes' and other has redundant one.
This change fixes it.

leifmadsen/toad,redhat-nfvpe/toad,redhat-nfvpe/ansible-cira