arm64: dts: renesas: salvator-x: Add SD/OE pin properties

arm64: dts: renesas: salvator-x: Add SD/OE pin properties

Add SD/OE pin properties to the devicetree so that Linux can configure
the pin without relying on the OTP. This matches the register
configuration reported by Geert [1] as well as his analysis of the
schematic.

[1] https://lore.kernel.org/linux-arm-kernel/CAMuHMdUmf=BYrVWGDp4kjLGK=66HSMJbHuMvne-xGLkTYnGv2g@mail.gmail.com/

Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20240927201313.624762-2-sean.anderson@linux.dev
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>