bgpd: fix evpn attributes being dropped on input

bgpd: fix evpn attributes being dropped on input

All assignments of the EVPN attributes (ESI and Gateway IP) are gated
behind the peer being set up for inbound soft-reconfiguration.

There are no actual reasons for this limitation, so let's perform the
EVPN attribute assignment no matter what when soft reconfiguration is
not enabled.

Fixes: 6e076ba5231 ("bgpd: Fix for ain->attr corruption during path update")
Signed-off-by: Tuetuopay <tuetuopay@me.com>