LU-7734 lnet: handle non-MR peers

LU-7734 lnet: handle non-MR peers

Add the ability to declare a peer to be non-MR from the DLC
interface. By default if a peer is configured from DLC it is
assumed to be MR capable, except when the non-mr flag is set.

For non-MR peers always use the same NI to communicate with it.
If multiple NIs are used to communicate with a non-MR peer the
peer will consider that it's talking to different peers which could
cause upper layers to be confused.

Signed-off-by: Amir Shehata <amir.shehata@intel.com>
Change-Id: Ie3ec45f5f44fa7d72e3e0335b1383f9c3cc92627
Reviewed-on: http://review.whamcloud.com/19305
Tested-by: Jenkins
Reviewed-by: Doug Oucharek <doug.s.oucharek@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Olaf Weber <olaf@sgi.com>