LU-3963 libcfs: convert LNET layer to linux list api

LU-3963 libcfs: convert LNET layer to linux list api

This patch converts all cfs_list primitives to the linux api
for the LNET layer.

Change-Id: Id790b87d253db759edb921f4828f04b11bbe6fe9
Signed-off-by: James Simmons <uja.ornl@gmail.com>
Reviewed-on: http://review.whamcloud.com/9369
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Amir Shehata <amir.shehata@intel.com>