mmc: core: Collect common code for card ocr validation

Since mmc_select_voltage now only gets called from the attach sequence,
it makes sense to move the out of spec validations of the card ocr into
this function.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

diff --cc drivers/mmc/core/core.c
Simple merge

diff --cc drivers/mmc/core/mmc.c
Simple merge

diff --cc drivers/mmc/core/sd.c
Simple merge

diff --cc drivers/mmc/core/sdio.c
Simple merge