arch: arm: dts: k3-am62a7-phyboard-lyra-rdk-u-boot: Disable Ethernet2

Don't initialize Ethernet2 in SPL. We cannot boot from that source anyways
and it throws an error during boot.

This will remove following error message during network boot:

Error: ethernet@8000000port@2 No valid MAC address found.ethernet@8000000port@1
Waiting for PHY auto negotiation to complete....... done

Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
diff --git a/arch/arm/dts/k3-am62a7-phyboard-lyra-rdk-u-boot.dtsi b/arch/arm/dts/k3-am62a7-phyboard-lyra-rdk-u-boot.dtsi
index 41692c8..e2a086e 100644
--- a/arch/arm/dts/k3-am62a7-phyboard-lyra-rdk-u-boot.dtsi
+++ b/arch/arm/dts/k3-am62a7-phyboard-lyra-rdk-u-boot.dtsi
@@ -66,7 +66,7 @@
 };
 
 &cpsw_port2 {
-	bootph-all;
+	status = "disabled";
 };
 
 &dmsc {