LU-8401 lnet: remove dependency on OFED headers from lnet

LU-8401 lnet: remove dependency on OFED headers from lnet

The LNet layer shouldn't refer to anything in the RDMA world directly.
All OFED dependent code should be localized into o2iblnd.
So, remove dependency on OFED headers from all code except o2iblnd.

Change-Id: I445922ca2be58b5c34e61fe1fa50a423f13ec75d
Signed-off-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-on: http://review.whamcloud.com/21317
Reviewed-by: Doug Oucharek <doug.s.oucharek@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Chris Horn <hornc@cray.com>
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>