drivers: net: xgene: Add support for Classifier engine

drivers: net: xgene: Add support for Classifier engine

BugLink: http://bugs.launchpad.net/bugs/1613157
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Khuong Dinh <kdinh@apm.com>
Signed-off-by: Tanmay Inamdar <tinamdar@apm.com>
Tested-by: Toan Le <toanle@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 76f94a9c77d2fe6f0f02235eea84dae19edd3161 linux-next)
Signed-off-by: Craig Magina <craig.magina@canonical.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>