drivers: adc: max32: Support for RTIO stream

Updated MAX32 driver with RTIO  stream functionality.

Signed-off-by: Dimitrije Lilic <dimitrije.lilic@orioninc.com>

Author: dimitrije-lilic

drivers/adc/Kconfig.max32

@@ -10,3 +10,10 @@ config ADC_MAX32
 	select PINCTRL
 	help
 	  Enable ADC driver for ADI MAX32xxx MCUs.
+
+config ADC_MAX32_STREAM
+	bool "Use FIFO to stream data"
+	select ADC_ASYNC
+	default n
+	help
+	  Use this configuration option to enable streaming ADC data via RTIO.