ARM: dts: stm32: Add missing ethernet PHY reset on AV96

Add PHY reset GPIO on AV96 ethernet PHY.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
diff --git a/arch/arm/dts/stm32mp157a-avenger96.dts b/arch/arm/dts/stm32mp157a-avenger96.dts
index e3f2952..27d407a 100644
--- a/arch/arm/dts/stm32mp157a-avenger96.dts
+++ b/arch/arm/dts/stm32mp157a-avenger96.dts
@@ -102,6 +102,7 @@
 	phy-mode = "rgmii";
 	max-speed = <1000>;
 	phy-handle = <&phy0>;
+	phy-reset-gpios = <&gpioz 2 GPIO_ACTIVE_LOW>;
 
 	mdio0 {
 		#address-cells = <1>;