staging: lustre: fix sparse warnings for undeclared symbols

This patch fixes the following sparse warnings for drivers/staging/lustre/lnet/lnet/router.c:

router.c:139:1: warning: symbol 'lnet_ni_notify_locked' was not declared. Should it be static?
router.c:277:1: warning: symbol 'lnet_add_route_to_rnet' was not declared. Should it be static?

Signed-off-by: John Church <sleeveroller@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>