[E81][DTS] Add device tree entries for peripheral i2c devices

i2c1:
- HT16K33 Auxiliary Display
- TI TMP102 Onboard Temperature Sensor
- TI IN219 Onboard Current Sensor

i2c2:
- LTC4100 Smart Battery Charger Controller
- Atmel 24C32 EEPROM

arch/arm64/boot/dts/seco/include/baseboard-e81-b79.dtsi

@@ -105,4 +105,44 @@ gpio_usb3_en_oc_n {
 	};
 };
 
+
+&i2c1 {
+	postcode: ht16k33@71 {
+		compatible = "holtek,ht16k33";
+		reg = <0x71>;
+		refresh-rate-hz = <10>;
+		status = "disabled";
+		// Disabled by default, as it gets attached
+		// as /dev/fb0 and breaks the splash screen
+	};
+
+	hwmon: tmp102@49 {
+		compatible = "ti,tmp102";
+		reg = <0x49>;
+		status = "okay";
+	};
+
+	current_sense: ina219@40 {
+		compatible = "ti,ina219";
+		reg = <0x40>;
+		// shunt-resistor = <60000>; /* = 60 mOhms */
+	};
+};
+
+&i2c2 {
+	charger: ltc4100@9 {
+		compatible = "lltc,ltc4100", "sbs,sbs-charger";
+		reg = <0x9>;
+		status = "okay";
+	};
+
+	eeprom: eeprom@57 {
+		compatible = "atmel,24c32";
+		reg = <0x57>;
+		pagesize = <32>;
+		vcc-supply = <&reg_1v8>;
+		status = "okay";
+	};
+};
+
 #endif