power: supply: max77693_charger: fix unintentional fall-through

It seems that a *break* is missing in order to avoid a fall-through.
Otherwise, the calculation of *data* makes no sense.

Addresses-Coverity-ID: 1271172 ("Missing break in switch")
Fixes: 87c2d906 ("power: max77693: Add charger driver for Maxim 77693")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>

drivers/power/supply/max77693_charger.c

@@ -567,6 +567,7 @@ static int max77693_set_charge_input_threshold_volt(struct max77693_charger *chg
 	case 4800000:
 	case 4900000:
 		data = (uvolt - 4700000) / 100000;
+		break;
 	default:
 		dev_err(chg->dev, "Wrong value for charge input voltage regulation threshold\n");
 		return -EINVAL;