serial: sh-sci: Replace hardcoded 3 by UART_PM_STATE_OFF

Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Acked-by: Simon Horman <horms@verge.net.au>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/sh-sci.c

@@ -1955,7 +1955,7 @@ static void sci_pm(struct uart_port *port, unsigned int state,
 	struct sci_port *sci_port = to_sci_port(port);
 
 	switch (state) {
-	case 3:
+	case UART_PM_STATE_OFF:
 		sci_port_disable(sci_port);
 		break;
 	default: