drivers: serial: Add name to choice symbol

Add name to choice symbol, so that default value can be changed
downstream.

Developed-by: Andreas Rudolf <[email protected]>

Signed-off-by: Reto Schneider <[email protected]>

Author: rettichschnidi

drivers/serial/Kconfig.native_posix

@@ -13,7 +13,7 @@ config UART_NATIVE_POSIX
 
 if UART_NATIVE_POSIX
 
-choice
+choice NATIVE_UART_0
 	prompt "Native UART Port 0 connection"
 	default NATIVE_UART_0_ON_OWN_PTY