EX-7251 lnet: update locking multiple NIDs of the MR peer

EX-7251 lnet: update locking multiple NIDs of the MR peer

Port updates to
LU-16709 lnet: fix locking multiple NIDs of the MR peer

This allows for the first of the two locked NIDs
to stay primary as intended for the purpose of communicating
with Lustre even if peer discovery succeeded
using a different NID of MR peer.

Lustre-change: https://review.whamcloud.com/50530
Lustre-commit: TBD (ddc9652a238e146e215157572b2e7e119de0e63b)

Signed-off-by: Serguei Smirnov <ssmirnov@whamcloud.com>
Change-Id: Ic66c3b6d4dec98540e4fa2d7fa51c0e5e2f442ed
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/50603
Reviewed-by: Frank Sehr <fsehr@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Andreas Dilger <adilger@whamcloud.com>