arm64: dts: renesas: rzg3s-smarc-som: Spelling s/device-type/device_type/

arm64: dts: renesas: rzg3s-smarc-som: Spelling s/device-type/device_type/

Fix the following DTBS check warnings:

    arch/arm64/boot/dts/renesas/r9a08g045s33-smarc.dt: /: memory@48000000: 'device-type' does not match any of the regexes: 'pinctrl-[0-9]+'
	    from schema $id: http://devicetree.org/schemas/memory.yaml#
    arch/arm64/boot/dts/renesas/r9a08g045s33-smarc.dtb: /: memory@48000000: 'device_type' is a required property
	    from schema $id: http://devicetree.org/schemas/memory.yaml#

Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20231010132701.1658737-7-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>