regulator: core: Spelling fix

Trivial spell fix, s/succesfully/successfully.
Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: NMark Brown <broonie@kernel.org>

drivers/regulator/core.c

@@ -2723,7 +2723,7 @@ int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV)
 		goto out;
 
 	/* If we're trying to set a range that overlaps the current voltage,
-	 * return succesfully even though the regulator does not support
+	 * return successfully even though the regulator does not support
 	 * changing the voltage.
 	 */
 	if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) {