sh: remove extraneous ; on scif_sercon_putc wait loop

It seems we have gained an extraneous trailing ';' on one of the
wait loops in scif_sercon_putc().  Although this is completely
benign as the apparent payload is also the empty statement, it
invites error in the future.  Clean it up now.
Signed-off-by: NAndy Whitcroft <apw@shadowen.org>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

arch/sh/kernel/early_printk.c

@@ -76,7 +76,7 @@ static void scif_sercon_putc(int c)
 	sci_in(&scif_port, SCxSR);
 	sci_out(&scif_port, SCxSR, 0xf3 & ~(0x20 | 0x40));
 
-	while ((sci_in(&scif_port, SCxSR) & 0x40) == 0);
+	while ((sci_in(&scif_port, SCxSR) & 0x40) == 0)
 		;
 
 	if (c == '\n')