sunrpc/lockd: fix references to the BKL

The BKL is completely out of the picture in the lockd and sunrpc code
these days. Update the antiquated comments that refer to it.

Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

diff --cc fs/lockd/svclock.c
Simple merge

diff --cc include/linux/sunrpc/svc.h
Simple merge

diff --cc net/sunrpc/svc.c
Simple merge

diff --cc net/sunrpc/svc_xprt.c
Simple merge