driver: led_strip: do not set uart supported

Let the vendor driver defines whether ASYNC is supported.

Signed-off-by: Sylvio Alves <[email protected]>

Author: sylvioalves

drivers/led_strip/Kconfig.ws2812

@@ -34,7 +34,6 @@ config WS2812_STRIP_UART
 	depends on DT_HAS_WORLDSEMI_WS2812_UART_ENABLED
 	select SERIAL if $(dt_compat_on_bus,$(DT_COMPAT_WORLDSEMI_WS2812_UART),uart)
 	select UART_ASYNC_API
-	select SERIAL_SUPPORT_ASYNC
 	help
 	  Enable driver for WS2812 (and compatible) LED strips using UART.
 	  This method requires a high-speed UART and carefully crafted