mei: use mei_io_cb_ warppers also for control flows

move the mei_io_cb_ wrappers to to iorw.c for global use
and use them also for handling control flows

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

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

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

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

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