For multiple concurrency on dual mac, connection
dump is not added if a single vdev is present on
one mac. For example if 2 connections are on MCC 5 GHz
and one connection is on 2 GHz in DBS system then in
connection dump only MCC/SCC vdevs will be present.
Fix is to include single vdev in connection dump and
cleanup dump_dual_mac_concurrency as concurrency can
be checked with in loop instead of separarte mac share
check for each vdev.
Change-Id: I09ab964915cd3b132c3bd3cba096e40cba238eed
CRs-Fixed: 3254806