staging: lustre: include: fix one off errors in lustre_id.h

During inspection of another patch Dan Carpenter noticed some
one off errors in lustre_id.h. Fix the condition test for
OBIF_MAX_OID.

Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>