mei: get rid of ext_msg

Use more standard message writing for
oob data.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/misc/mei/hbm.c
Simple merge

diff --cc drivers/misc/mei/hbm.h
Simple merge

diff --cc drivers/misc/mei/hw-me.c
Simple merge

diff --cc drivers/misc/mei/init.c
Simple merge

diff --cc drivers/misc/mei/interrupt.c
Simple merge

diff --cc drivers/misc/mei/mei_dev.h
Simple merge