arm64: dts: mediatek: mt7988: add missing i2c1 to bpi-r4

Author: frank-w

arch/arm64/boot/dts/mediatek/mt7988a-bananapi-bpi-r4.dts

@@ -232,6 +232,12 @@
 	};
 };
 
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>";
+	status = "okay";
+};
+
 &i2c2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c2_1_pins>;