mmc: core: Add a retries parameter to __mmc_switch function

Add command retries parameter to __mmc_switch(), let caller
pass retries according to the caller's condition.

Signed-off-by: Bean Huo <beanhuo@micron.com>
Link: https://lore.kernel.org/r/20210414212236.346813-2-huobean@gmail.com


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