Device-Tree bindings for MediaTek MT5896 SoC based RTC

Required properties:
- compatible	    : Should be
			"mediatek,mt5896-pwm" : for MT5896 SoC
- reg 		    : Specifies base physical address and size of the registers;

Example:

	pwm0@1c487200 {
		compatible = "mediatek,mt5896-pwm";
		reg = <0 0x1c487200 0 0x200>;
	};
