IPsec P2 life_time changes. May help with issue #10176
IPsec P2 life_time changes. May help with issue #10176

* We currently only set life_time which isn't ideal
* Swanctl format wants rekey_time set, defaults to 1h (3600)
* Many users set P2 lifetime to 3600
* With rekey_time and life_time equal, rand_time is 0, so both always
rekey at 1h which can lead to the duplication.
* Now sets rekey_time to 90% life_time, rand_time to 10% life_time

dennypage/pfsense,pfsense/pfsense,pfsense/pfsense,pfsense/pfsense,NewEraCracker/pfsense,NewEraCracker/pfsense,dennypage/pfsense,pfsense/pfsense,dennypage/pfsense,dennypage/pfsense,NewEraCracker/pfsense,NewEraCracker/pfsense