LU-13575 lnet: Ensure round robin selection of peer NIs

LU-13575 lnet: Ensure round robin selection of peer NIs

Use the peer net sequence number to set the peer NI sequence number to
ensure round robin selection of peer NIs on each peer net.

HPE-bug-id: LUS-10349
Test-Parameters: trivial
Signed-off-by: Chris Horn <chris.horn@hpe.com>
Change-Id: I1fa14ad675ead4ae2c5b1d4edad250caa4498df2
Reviewed-on: https://review.whamcloud.com/45004
Reviewed-by: Serguei Smirnov <ssmirnov@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>