datapath: openvswitch: Deferred fifo API change.

datapath: openvswitch: Deferred fifo API change.

Upstream commit:
    openvswitch: Deferred fifo API change.

    add_deferred_actions() API currently requires actions to be passed in
    as a fully encoded netlink message. So far both 'sample' and 'recirc'
    actions happens to carry actions as fully encoded netlink messages.
    However, this requirement is more restrictive than necessary, future
    patch will need to pass in action lists that are not fully encoded
    by themselves.

    Signed-off-by: Andy Zhou <azhou@ovn.org>
    Acked-by: Joe Stringer <joe@ovn.org>
    Acked-by: Pravin B Shelar <pshelar@ovn.org>
    Signed-off-by: David S. Miller <davem@davemloft.net>
Upstream: 47c697aa2d07 ("openvswitch: Deferred fifo API change.")
Signed-off-by: Andy Zhou <azhou@ovn.org>
Acked-by: Joe Stringer <joe@ovn.org>