phy: meson-g12a-usb2: fix the potential build warning

Fix the potential build warning.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/drivers/phy/meson-g12a-usb2.c b/drivers/phy/meson-g12a-usb2.c
index a1e6219..447ce72 100644
--- a/drivers/phy/meson-g12a-usb2.c
+++ b/drivers/phy/meson-g12a-usb2.c
@@ -66,10 +66,10 @@
 
 static int phy_meson_g12a_usb2_power_on(struct phy *phy)
 {
+#if CONFIG_IS_ENABLED(DM_REGULATOR)
 	struct udevice *dev = phy->dev;
 	struct phy_meson_g12a_usb2_priv *priv = dev_get_priv(dev);
 
-#if CONFIG_IS_ENABLED(DM_REGULATOR)
 	if (priv->phy_supply) {
 		int ret = regulator_set_enable(priv->phy_supply, true);
 		if (ret)
@@ -82,10 +82,10 @@
 
 static int phy_meson_g12a_usb2_power_off(struct phy *phy)
 {
+#if CONFIG_IS_ENABLED(DM_REGULATOR)
 	struct udevice *dev = phy->dev;
 	struct phy_meson_g12a_usb2_priv *priv = dev_get_priv(dev);
 
-#if CONFIG_IS_ENABLED(DM_REGULATOR)
 	if (priv->phy_supply) {
 		int ret = regulator_set_enable(priv->phy_supply, false);
 		if (ret) {