Merge branch 'Update offload configuration with SA'

Chiachang Wang says:

====================
The current Security Association (SA) offload setting
cannot be modified without removing and re-adding the
SA with the new configuration. Although existing netlink
messages allow SA migration, the offload setting will
be removed after migration.

This patchset enhances SA migration to include updating
the offload setting. This is beneficial for devices that
support IPsec session management.
====================

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>