Add pins, groups and functions for the SD Card/MMC Interface on the
Renesas R-Car V4M (R8A779H0) SoC.
Signed-off-by: Cong Dang <cong.dang.xn@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/c4c06f5be8ffeb32c48993c138f89c8f463751f4.1706264667.git.geert+renesas@glider.be