On earlier platforms, the vqmmc regulator was enabled by the previous bootloader, but on the newest (SM8650) it's not and we need vqmmc to be enabled in order to have the card to respond. Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>