mmc: sdhci-pci: enable the clear transfer mode register quirk for AMD sdhci

This patch is to enable the quirk for AMD sdhci requiring transfer
mode register need to be cleared for commands without data

Signed-off-by: Vincent Wan <vincent.wan@amd.com>
Signed-off-by: Wan Zongshun <mcuos.com@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>