Fix for capstats with PF_RING+DNA pfdnacluster_master

When using PF_RING+DNA with pfdnacluster_master, an application doesn't
work if it tries to use the same interface name that Bro is using, so
a quick fix to get capstats working again is to give it a copy of the
interface name with the "@n" suffix removed.
Fix for capstats to display correct interface name

Show the correct interface name in capstats when using PF_RING+DNA with
pfdnacluster_master.
Merge remote-tracking branch 'origin/fastpath'

* origin/fastpath:
  Fix for capstats to display correct interface name
  Fix for capstats with PF_RING+DNA pfdnacluster_master
Updating submodule(s).

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