CIFS: Add brlock support for SMB2

Signed-off-by: Pavel Shilovsky <pshilovsky@etersoft.ru>

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

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

diff --cc fs/cifs/smb2file.c
Simple merge

diff --cc fs/cifs/smb2ops.c
Simple merge

diff --cc fs/cifs/smb2pdu.c
Simple merge

diff --cc fs/cifs/smb2pdu.h
Simple merge

diff --cc fs/cifs/smb2proto.h
Simple merge