HSD #14015549974: dts: agilex5: Enable SDMMC PHY input through device tree

commit 93dbca4e398c26726c035b28d39f8611912557f4 from
https://github.com/altera-opensource/linux-socfpga.git



Enable the set of PHY value to program through device tree settings

Signed-off-by: Kah Jing Lee <kah.jing.lee@intel.com>
Signed-off-by: Liwei Song <liwei.song@windriver.com>