ARM: dts: imx: Configure FEC for iMX6QDL picoITX

Add a u-boot dtsi for configuring the FEC node of the DH picoITX.

Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Philip Oberfichtner <pro@denx.de>
diff --git a/arch/arm/dts/imx6dl-dhcom-picoitx-u-boot.dtsi b/arch/arm/dts/imx6dl-dhcom-picoitx-u-boot.dtsi
new file mode 100644
index 0000000..16669b2
--- /dev/null
+++ b/arch/arm/dts/imx6dl-dhcom-picoitx-u-boot.dtsi
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: (GPL-2.0+)
+/*
+ * Copyright (C) 2022 Philip Oberfichtner <pro@denx.de>
+ */
+
+#include "imx6qdl-dhcom-u-boot.dtsi"
+
+&fec {
+	phy-reset-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
+};