ARM: dts: AM33XX: Add rtc node

Add am33xx rtc node.
Signed-off-by: Afzal Mohammed <afzal@ti.com>
[b-cousson@ti.com: Update the subject]
Signed-off-by: Benoit Cousson <b-cousson@ti.com>

arch/arm/boot/dts/am33xx.dtsi

@@ -291,5 +291,13 @@ timer7: timer@4804a000 {
 			ti,hwmods = "timer7";
 			ti,timer-pwm;
 		};
+
+		rtc@44e3e000 {
+			compatible = "ti,da830-rtc";
+			reg = <0x44e3e000 0x1000>;
+			interrupts = <75
+				      76>;
+			ti,hwmods = "rtc";
+		};
 	};
 };