datapath: meter: Fix setting meter id for new entries

datapath: meter: Fix setting meter id for new entries

Upstream commit:
    From: Justin Pettit <jpettit@ovn.org>
    Date: Sat, 28 Jul 2018 15:26:01 -0700
    Subject: [PATCH] openvswitch: meter: Fix setting meter id for new entries

    The meter code would create an entry for each new meter.  However, it
    would not set the meter id in the new entry, so every meter would appear
    to have a meter id of zero.  This commit properly sets the meter id when
    adding the entry.

    Fixes: 96fbc13d7e77 ("openvswitch: Add meter infrastructure")
    Signed-off-by: Justin Pettit <jpettit@ovn.org>
    Cc: Andy Zhou <azhou@ovn.org>
    Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Justin Pettit <jpettit@ovn.org>
Signed-off-by: Greg Rose <gvrose8192@gmail.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>