LU-10391 lnet: migrate peer NI control to Netlink

LU-10391 lnet: migrate peer NI control to Netlink

Move peer creation and deletion to the Netlink API. This change
enables the creation of peers with large NID addresses.

Test-Parameters: trivial testlist=sanity-lnet
Change-Id: I7f2f75e73e3f39856751f65e240f2172f703d0bc
Signed-off-by: James Simmons <jsimmons@infradead.org>
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/49574
Reviewed-by: Frank Sehr <fsehr@whamcloud.com>
Reviewed-by: Chris Horn <chris.horn@hpe.com>
Reviewed-by: Cyril Bordage <cbordage@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>