fix openvswitch requirement check

With VXLAN enabled on openvswitch, neutron checks
module version of the openvswitch kernel module.
If the pattern to extract the version matches twice
(eg. for path and version) the agent dies.

This patch ensures, that only the version is checked
against the pattern.

Change-Id: I879624f6b0936cab59e02958ae3a89950df773bb
Closes-Bug: #1322139
Imported Translations from Transifex

Change-Id: I493fe42de2c87538c730a2ac62ce6fbe39b154ae
Merge "Imported Translations from Transifex"
Merge "fix openvswitch requirement check"