T5953: Changed values of 'close-action' to Strongswan values
Changed the value from 'hold' to 'trap' in the 'close-action'
option in the IKE group.
Changed the value from 'restart' to 'start' in the 'close-action'
option in the IKE group.
(cherry picked from commit 8870fabf1b4358618fca7db459515106653214b5)