Update i18n translation for VMware NSX plugin log msg's

All the existing LOG.info, LOG.warning, LOG.error and LOG.critical
messages should have _LI, _LW, _LE and _LC respectively. Also, debug
level log shouldn't be translated. This patch set will cover the vmware
directory under neutron/plugins.

Change-Id: Iba83af988cb2de919b05108f145efb19e9192ae4
Partial-Bug: #1320867
Merge "Update i18n translation for VMware NSX plugin log msg's"