regulator: qcom_spmi: Fix calculating number of voltages

n /= range->step_uV + 1; is equivalent to n /= (range->step_uV + 1);
which is wrong. Fix it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/qcom_spmi-regulator.c

@@ -1106,7 +1106,7 @@ static void spmi_calculate_num_voltages(struct spmi_voltage_set_points *points)
 		n = 0;
 		if (range->set_point_max_uV) {
 			n = range->set_point_max_uV - range->set_point_min_uV;
-			n /= range->step_uV + 1;
+			n = (n / range->step_uV) + 1;
 		}
 		range->n_voltages = n;
 		points->n_voltages += n;