arm64: dts: mediatek: mt8183: Use mediatek,mt8183b-mali as GPU compatible

Use the new GPU related compatible to finally enable GPU DVFS on
the MT8183 SoC.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20230301095523.428461-7-angelogioacchino.delregno@collabora.comSigned-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm64/boot/dts/mediatek/mt8183.dtsi

@@ -1752,7 +1752,7 @@ mfgcfg: syscon@13000000 {
 		};
 
 		gpu: gpu@13040000 {
-			compatible = "mediatek,mt8183-mali", "arm,mali-bifrost";
+			compatible = "mediatek,mt8183b-mali", "arm,mali-bifrost";
 			reg = <0 0x13040000 0 0x4000>;
 			interrupts =
 				<GIC_SPI 280 IRQ_TYPE_LEVEL_LOW>,