Resolve ansible-lint ANSIBLE0008
Resolve ansible-lint ANSIBLE0008

ansible-lint 2.3.7 added a rule checking for use of the deprecated
'sudo' and 'sudo_user' directives. They have been replaced with 'become'
and 'become_user' respectively.

Change-Id: I2271fe8468840884f19f41abba37e696c6296350

michaelgugino/openstack-ansible-os_neutron,michaelgugino/openstack-ansible-os_neutron