Fix missing volume_name_template flag.

volume_template_name was converted to a self.configuration option,
however we don't import that opt in the self.configuration changes.

This patch switches the specifier back to the global CONF

Fixes bug: 1199909

Change-Id: I1431ba8a46b3a86ed77c02646a1c5fd1f62ae010
    cinder.api: Replace 'locals()' with explicit values

    Help bring source code into compliance with the
    Cinder Style Commandments:
    https://github.com/openstack/cinder/blob/master/HACKING.rst

    This change covers all affected source in the
    cinder api module, specifically:
    cinder/api/contrib/volume_actions.py

    Partially fixes: bug #1190758

Change-Id: I2134e69b70a5a5132847168f60b4d192bdf0b536
Merge "Fix missing volume_name_template flag."
Merge "    cinder.api: Replace 'locals()' with explicit values"