[CIFS] Add in some missing flags and cifs README and TODO corrections

Signed-off-by: Steve French <sfrench@us.ibm.com>

diff --cc fs/cifs/CHANGES
Simple merge

diff --cc fs/cifs/README
Simple merge

diff --cc fs/cifs/TODO
Simple merge

diff --cc fs/cifs/cifspdu.h
Simple merge

diff --cc fs/cifs/connect.c
Simple merge

diff --cc fs/cifs/file.c
Simple merge