Add support to enumerate SD in UHS mode on Tegra194. Add required
device-tree properties in SDMMC1 and SDMMC3 instances to enable dynamic
pad voltage switching and enumerate SD card in UHS-I modes.
Signed-off-by: Prathamesh Shete <pshete@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>