power: rk818-battery: restore coffset when update fail

Change-Id: Ia1d02a0d340819bbca14e4f0931f9e94230cef78
Signed-off-by: Jianhong Chen <chenjh@rock-chips.com>

drivers/power/rk818_battery.c

@@ -693,6 +693,8 @@ static bool rk818_bat_adc_calib(struct rk818_battery *di)
 		}
 	}
 
+	rk818_bat_set_coffset(di, save_coffset);
+
 	return false;
 }