LU-8932 lnet: define new network driver ptl4lnd

LU-8932 lnet: define new network driver ptl4lnd

Assign an ID to the new network driver ptl4lnd developped by Bull
that implements a LND based on Portals 4 API. It is intended to be
used with BXI, the Bull interconnect hardware.

Signed-off-by: Gregoire Pichon <gregoire.pichon@bull.net>
Change-Id: I38e505916899dc7f01b3ad0372c9f068fa06f308
Reviewed-on: https://review.whamcloud.com/24768
Tested-by: Jenkins
Reviewed-by: Doug Oucharek <doug.s.oucharek@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>