ARM: dts: sun8i: tbs-a711: Add node for BMA250 accelerometer

A711 tablet has BMA250 accelerometer connected to I2C1 bus. Enable
both the I2C1 bus and add the accelerometer device to it.
Signed-off-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>

arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts

@@ -156,6 +156,18 @@ &ehci1 {
 	status = "okay";
 };
 
+&i2c1 {
+	clock-frequency = <400000>;
+	status = "okay";
+
+	accelerometer@18 {
+		compatible = "bosch,bma250";
+		reg = <0x18>;
+		interrupt-parent = <&pio>;
+		interrupts = <7 10 IRQ_TYPE_EDGE_RISING>; /* PH10 / EINT10 */
+	};
+};
+
 &mmc0 {
 	vmmc-supply = <&reg_dcdc1>;
 	pinctrl-names = "default";