mmc: tmio: undo PM autosuspend when removing the host

When removing the driver make sure to undo the PM autosuspend configured
when probing the host.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>