The zfskeys service script starts before the zfs service script so that
dataset decryption keys are available when zfs mount -a is run. One of
the potential edge cases of this design is that if a key is stored on
ZFS it won't be loaded until zfs mount -a is issued.
In order to address that, let's try to load the keys and mount related
ZFS datasets after the zfs script finishes its standard mounting
Reported by: Graham Perrin <email@example.com>
Fixes: 33ff39796ffe Add zfskeys rc.d script for auto-loading encryption keys
MFC after: 3 days
Sponsored by: Modirum
Sponsored by: Klara Inc.