LU-17743 o2iblnd: fix privileged port check in passive_connect

LU-17743 o2iblnd: fix privileged port check in passive_connect

Check that the port is in "privileged" range only if
kib_require_priv_port is set

Test-Parameters: trivial testlist=sanity-lnet
Fixes: 9b18afa ("LU-17743 ko2iblnd: move to struct lnet_nid")
Signed-off-by: Serguei Smirnov <ssmirnov@whamcloud.com>
Change-Id: I3ed9c174d983be68aecc4b8e12aaae7c096d26e8
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/55266
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Chris Horn <chris.horn@hpe.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>