pinctrl: renesas: r8a7779: Restore pin function sort order

Move the sdhi* pin functions where they belong.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/f69d05a760445c8d67bedcb39cf5959333c71a1f.1643199959.git.geert+renesas@glider.be