gpio: samsung: Add missing "break" statement

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
index a85e00b..07105ee 100644
--- a/drivers/gpio/gpio-samsung.c
+++ b/drivers/gpio/gpio-samsung.c
@@ -379,6 +379,7 @@
 	case 6:
 		shift = ((off + 1) & 7) * 4;
 		reg -= 4;
+		break;
 	default:
 		shift = ((off + 1) & 7) * 4;
 		break;