MMC: Tell emmc chip state to SCU via new field in Dekker mutex

MMC: Tell emmc chip state to SCU via new field in Dekker mutex

BZ33846

SCU may access emmc while the kernel is between device suspend-resume
state. During that period the emmc chip is detached. SCU accesses fails
since the SCU doesn't power on the chip.
SCU must know the status of the emmc chip. Easiest way
is to pass the information from the kernel driver to SCU.

New field in the emmc dekker mutex may be updated only when
IA has successfully locked the mutex.

Change-Id: I9b9569d1b8d9f84fb9cf1b6ba96db99a65c08d4e
Signed-off-by: Samu Onkalo <samu.onkalo@intel.com>
Reviewed-on: http://android.intel.com:8080/46579
Reviewed-by: Dong, Chuanxiao <chuanxiao.dong@intel.com>
Reviewed-by: Koskinen, Ilkka <ilkka.koskinen@intel.com>
Tested-by: Sun, Jianhua <jianhua.sun@intel.com>
Reviewed-by: Tang, Richard <richard.tang@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>