regulator: wm8350: Constify regulator_desc

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index ab1e183..552b1ed 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -1269,7 +1269,7 @@
 	.enable_time = wm8350_isink_enable_time,
 };
 
-static struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = {
+static const struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = {
 	{
 		.name = "DCDC1",
 		.id = WM8350_DCDC_1,