ARM: dts: sun8i: q8-common: Enable RSB controller for A23/A33 Q8 tablets

The Reduced Serial Bus controller is used to talk to the onboard PMIC.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/sun8i-q8-common.dtsi

@@ -90,6 +90,10 @@ mmc0_cd_pin_q8: mmc0_cd_pin@0 {
 	};
 };
 
+&r_rsb {
+	status = "okay";
+};
+
 &r_uart {
 	pinctrl-names = "default";
 	pinctrl-0 = <&r_uart_pins_a>;