The driver adds different MFD child devices via mfd_add_devices() and
hence it is required to call mfd_remove_devices() to remove MFD child
devices.
Fixes: 5e0115581bbc ("cros_ec: Move cros_ec_dev module to drivers/mfd") Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>