This update for strongswan fixes the following issues:

strongswan was updated to version 5.9.11 (jsc#PED-4589)

- Removed Marvell auth-els patch that caused stability issues (bsc#1211715)
- Fixed strongswan fails IPSEC IKEv2 test related to the USGv6 certification (bsc#1211711)

- Version 5.9.11 changelog: https://github.com/strongswan/strongswan/releases/tag/5.9.11