ARM: dts: rockchip: mmc aliases for Sonoff iHost

Add aliases for sdio and sdmmc to ensure consistent ordering of
mmc devices on boot

Signed-off-by: Tim Lunn <tim@feathertop.org>
Link: https://lore.kernel.org/r/20240215110425.934740-2-tim@feathertop.org


Signed-off-by: Heiko Stuebner <heiko@sntech.de>