mmc: sh_mmcif: Add exclusion between cmd and interrupt
mmc: sh_mmcif: Add exclusion between cmd and interrupt

A command end interrupt should not be processed between command issue
and setting of wait_for flag. It expects already the flag to be set.
Therefore the exclusive control was added.

Signed-off-by: Kouichi Tomita <3f2130c38eb7dc2825c3e68872036d00941d85f4@renesas.com>
Signed-off-by: Yoshihiro Kaneko <fb9c50ad36156858cd51bb145369d6f181add714@gmail.com>
Signed-off-by: Ulf Hansson <fe47b31f388f85ce6ddf64bf3a0cf6b46077d0e6@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs