LU-10391 ptlrpc: switch sptlrpc_rule_set_choose to large nid

LU-10391 ptlrpc: switch sptlrpc_rule_set_choose to large nid

sptlrpc_rule_set_choose() and sptlrpc_target_choose_flavor() now take
a large nid.  Only the net number is needed, so this is quite straight
forward.

Signed-off-by: Mr NeilBrown <neilb@suse.de>
Change-Id: Id4e8083d31c0393e2ef748babb6b851501b8d46f
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/50102
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Sebastien Buisson <sbuisson@ddn.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Oleg Drokin <green@whamcloud.com>