iio:light:noa1305: Fix missing break statement.

This got caught by the implicit fall through detection but is
a bug rather than missing marking.

Reported-by: 0-DAY kernel test infrastructure
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Fixes: 741172d1 ("iio: light: noa1305: Add support for NOA1305")
Link: https://lore.kernel.org/r/20190813133851.14345-1-Jonathan.Cameron@huawei.com
Cc: Gustavo Silva <gustavo@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/iio/light/noa1305.c

@@ -85,6 +85,7 @@ static int noa1305_scale(struct noa1305_priv *priv, int *val, int *val2)
 	case NOA1305_INTEGR_TIME_400MS:
 		*val = 100;
 		*val2 = 77 * 4;
+		break;
 	case NOA1305_INTEGR_TIME_200MS:
 		*val = 100;
 		*val2 = 77 * 2;