mmc: mmci: De-assert reset on probe

If we find a reset handle when probing the MMCI block,
make sure the reset is de-asserted. It could happen that
a hardware has reset asserted at boot.

Cc: Russell King <linux@armlinux.org.uk>
Cc: Yann Gautier <yann.gautier@foss.st.com>
Cc: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Yann Gautier <yann.gautier@foss.st.com>
Link: https://lore.kernel.org/r/20210630102408.3543024-1-linus.walleij@linaro.org


Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>