regulator: max8998: max8998_set_current_limit() can be static

Fixes: 4ffea5e0 ("regulator: max8998: Add charger regulator")
Signed-off-by: kbuild test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20200530130314.GA73557@d7d8dbfb64ffSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/max8998.c

@@ -371,8 +371,8 @@ static int max8998_set_voltage_buck_time_sel(struct regulator_dev *rdev,
 	return 0;
 }
 
-int max8998_set_current_limit(struct regulator_dev *rdev,
-			      int min_uA, int max_uA)
+static int max8998_set_current_limit(struct regulator_dev *rdev,
+				     int min_uA, int max_uA)
 {
 	struct max8998_data *max8998 = rdev_get_drvdata(rdev);
 	struct i2c_client *i2c = max8998->iodev->i2c;