lockd: Make two symbols static

Fix sparse warnings:

fs/lockd/clntproc.c:57:6: warning: symbol 'nlmclnt_put_lockowner' was not declared. Should it be static?
fs/lockd/svclock.c:409:35: warning: symbol 'nlmsvc_lock_ops' was not declared. Should it be static?

Reported-by: Hulk Robot <[e-mail]>
Signed-off-by: YueHaibing <[e-mail]>
Signed-off-by: J. Bruce Fields <[e-mail]>

fs/lockd/clntproc.c

···
 	return lockowner;
 }
 
-void nlmclnt_put_lockowner(struct nlm_lockowner *lockowner)
+static void nlmclnt_put_lockowner(struct nlm_lockowner *lockowner)
 {
 	if (!refcount_dec_and_lock(&lockowner->count, &lockowner->host->h_lock))
 		return;

fs/lockd/svclock.c

···
 	nlmsvc_put_lockowner((struct nlm_lockowner *)fl->fl_owner);
 }
 
-const struct file_lock_operations nlmsvc_lock_ops = {
+static const struct file_lock_operations nlmsvc_lock_ops = {
 	.fl_copy_lock = nlmsvc_locks_copy_lock,
 	.fl_release_private = nlmsvc_locks_release_private,
 };