ofproto-dpif-xlate: translate action_set in clone action

ofproto-dpif-xlate: translate action_set in clone action

A clone action saves the action_set prior to performing the clone, then
restores it afterwards. However when xlating the actions it neglects to
consider the action_set so any write_action() inside a clone() are
ignored. Unfortunately patch ports are internally implemented via
clone(). So a frame traversing to a second bridge via patch port will
never be affected by write_action() in the second bridge's flow table.

Lets make clone() aware of the action_set.

Signed-off-by: Eric Garver <e@erig.me>
Signed-off-by: Ben Pfaff <blp@ovn.org>