commit 974007aa upstream.

Move the mmc_switch_status() function in preparation for calling it
in mmc_select_hs400().
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>