[SUNSU]: Do not mark sunsu_console_setup() __init

Sets off buildcheck warnings.
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/serial/sunsu.c

@@ -1441,7 +1441,7 @@ static void sunsu_console_write(struct console *co, const char *s,
  *	- initialize the serial port
  *	Return non-zero if we didn't find a serial port.
  */
-static int __init sunsu_console_setup(struct console *co, char *options)
+static int sunsu_console_setup(struct console *co, char *options)
 {
 	struct uart_port *port;
 	int baud = 9600;