Blackfin arch: fix typo in early printk bit size processing

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

diff --git a/arch/blackfin/kernel/early_printk.c b/arch/blackfin/kernel/early_printk.c
index 1f4e3d2..c8ad051 100644
--- a/arch/blackfin/kernel/early_printk.c
+++ b/arch/blackfin/kernel/early_printk.c
@@ -105,10 +105,10 @@
 		cflag |= CS5;
 		break;
 	case 6:
-		cflag |= CS5;
+		cflag |= CS6;
 		break;
 	case 7:
-		cflag |= CS5;
+		cflag |= CS7;
 		break;
 	default:
 		cflag |= CS8;