stats: Enhance statistics output

Add basic NIC stats for all PHY ports when stats are enabled. In
addition, remove duplicate statistics and excessive use of
whitespace.

Change-Id: Iac7d7052f0cfbd459384b58eb7f1501d75e408c0
Signed-off-by: Kevin Traynor <kevin.traynor@intel.com>
Signed-off-by: Stephen Finucane <stephen.finucane@intel.com>
Reviewed-by: Mark D. Gray <mark.d.gray@intel.com>
docs: Add 'rte_kni' module requirement to setup

This module is required to successfully start 'ovs-dpdk'.

Change-Id: I696bfc32bf44bb4a804bcae5cc43da694ce63505
Signed-off-by: Stephen Finucane <stephen.finucane@intel.com>
Reviewed-by: Mark D. Gray <mark.d.gray@intel.com>
Reviewed-by: Mark B. Kavanagh <mark.b.kavanagh@intel.com>
ovs-ivshm-mngr: Remove support for KNI

Guest KNI support was removed in a previous release, in favour of
Userspace-vHost. This means the 'ovs-ivshm-mngr' no longer needs
to support KNI. Remove it.

Change-Id: I169eb8abdc5dec116a2fe5a4b6978c222600c1b6
Signed-off-by: Stephen Finucane <stephen.finucane@intel.com>
Reviewed-by: Mark D. Gray <mark.d.gray@intel.com>
Reviewed-by: Meghan Halton <meghan.halton@intel.com>