drivers: counter: Add MAX32xxx counter driver

Common counter driver based on timer for MAX32xxx MCUs
To use as wakeup source wakeup-source parameter shall be
defined as below

&lptimer0 {
	status = "okay";
	clock-source = <ADI_MAX32_PRPH_CLK_SRC_ERTCO>;
	wakeup-source;
	counter {
		status = "okay";
	};
};

Signed-off-by: Sadik Ozer <sadik.ozer@analog.com>