[CIFS] Ensure that cifs multiplex ids do not collide.

Signed-off-by: Steve French (sfrench@us.ibm.com)

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

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

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

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

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

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