mmc: sdhci-of-arasan: Add intel Thunder Bay SOC support to the arasan eMMC driver

Intel Thunder Bay SoC eMMC controller is based on Arasan
eMMC 5.1 host controller IP

Signed-off-by: Rashmi A <rashmi.a@intel.com>
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20210829182443.30802-2-rashmi.a@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>