staging: lustre: lnet: api-ni.c: fixed sparse warnings

- this fixes few sparse warnings for missing static in functions:

drivers/staging/lustre/lnet/lnet/api-ni.c:63:6: warning: symbol 'lnet_get_routes' was not declared. Should it be static?
drivers/staging/lustre/lnet/lnet/api-ni.c:69:6: warning: symbol 'lnet_get_networks' was not declared. Should it be static?
drivers/staging/lustre/lnet/lnet/api-ni.c:93:1: warning: symbol 'lnet_init_locks' was not declared. Should it be static?
drivers/staging/lustre/lnet/lnet/api-ni.c:102:1: warning: symbol 'lnet_fini_locks' was not declared. Should it be static?
drivers/staging/lustre/lnet/lnet/api-ni.c:180:6: warning: symbol 'lnet_assert_wire_constants' was not declared. Should it be static?
drivers/staging/lustre/lnet/lnet/api-ni.c:273:7: warning: symbol 'lnet_find_lnd_by_type' was not declared. Should it be static?
drivers/staging/lustre/lnet/lnet/api-ni.c:419:1: warning: symbol 'lnet_create_interface_cookie' was not declared. Should it be static?
drivers/staging/lustre/lnet/lnet/api-ni.c:450:1: warning: symbol 'lnet_res_container_cleanup' was not declared. Should it be static?
drivers/staging/lustre/lnet/lnet/api-ni.c:494:1: warning: symbol 'lnet_res_container_setup' was not declared. Should it be static?
drivers/staging/lustre/lnet/lnet/api-ni.c:612:1: warning: symbol 'lnet_prepare' was not declared. Should it be static?
drivers/staging/lustre/lnet/lnet/api-ni.c:917:1: warning: symbol 'lnet_shutdown_lndnis' was not declared. Should it be static?
drivers/staging/lustre/lnet/lnet/api-ni.c:1034:1: warning: symbol 'lnet_startup_lndnis' was not declared. Should it be static?

Signed-off-by: Anil Belur <askb23@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>