arm64: dts: mediatek: mt7981: add efuse block

MT7981 (Filogic 820) uses efuse for storing calibration data.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240514015154.11206-2-zajec5@gmail.comSigned-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

arch/arm64/boot/dts/mediatek/mt7981b.dtsi

@@ -116,6 +116,13 @@ pio: pinctrl@11d00000 {
 			#interrupt-cells = <2>;
 		};
 
+		efuse@11f20000 {
+			compatible = "mediatek,mt7981-efuse", "mediatek,efuse";
+			reg = <0 0x11f20000 0 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+		};
+
 		clock-controller@15000000 {
 			compatible = "mediatek,mt7981-ethsys", "syscon";
 			reg = <0 0x15000000 0 0x1000>;