ixgbe: disable LRO by default

ixgbe: disable LRO by default

Orabug: 23177316

This patch disables LRO by default in favor of GRO.

LRO is incompatible with forwarding and is disabled when forwarding
is turned on which makes the default offloads of the driver
inconsistent. LRO can still be enabled via ethtool.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Darin Miller <darin.j.miller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit 72bfd32d2f84d26aa132dd74a8eef14d039d326f)
Signed-off-by: Brian Maly <brian.maly@oracle.com>