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

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

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

Test-Parameters: trivial
HPE-bug-id: LUS-10349
Signed-off-by: Chris Horn <chris.horn@hpe.com>
Change-Id: I6ce0b088fcad6312186e6fbad4ab14283aee55eb
Reviewed-on: https://review.whamcloud.com/45003
Tested-by: jenkins <devops@whamcloud.com>
Reviewed-by: Serguei Smirnov <ssmirnov@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>