nfsd: have nfsd4_find_reclaim_client take a char * argument

Currently, it takes a client pointer, but later we're going to need to
search for these records without knowing whether a matching client even
exists.

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

diff --cc fs/nfsd/nfs4recover.c
Simple merge

diff --cc fs/nfsd/nfs4state.c
Simple merge

diff --cc fs/nfsd/state.h
Simple merge