mmc: rtsx_usb: Use MMC_CAP2_NO_SDIO

mmc: rtsx_usb: Use MMC_CAP2_NO_SDIO

BugLink: https://bugs.launchpad.net/bugs/1811337
Instead of having to return -EINVAL when requested to send SDIO specific
commands, let's set MMC_CAP2_NO_SDIO as it completely prevents them.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Michał Pecio <michal.pecio@gmail.com>
(cherry picked from commit 4b7d45451dff133b6453cb9571ea5349be1ce14f)
Signed-off-by: AceLan Kao <acelan.kao@canonical.com>
Acked-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>