LU-10391 ptlrpc: lprocfs_exp_setup() to take struct lnet_nid

LU-10391 ptlrpc: lprocfs_exp_setup() to take struct lnet_nid

lprocfs_exp_setup() now takes 'struct lnet_nid *' as peer_nid.

Signed-off-by: Mr NeilBrown <neilb@suse.de>
Change-Id: If779893d8b1c7b650d39182c121c1f611d058f0d
Reviewed-on: https://review.whamcloud.com/44642
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Frank Sehr <fsehr@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Chris Horn <chris.horn@hpe.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>