staging: lustre: lnet: lnet: Remove space between function name and open paranthesis '('

This patch fixes checpatch.pl warning in api-ni.c file.
WARNING: space prohibited between function name and open parenthesis '('

Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>