ipq806x: ap3935: disable hibernation on LAN1

The Extreme Networks AP3935's LAN1 port (gmac0/RGMII to AR8035 at MDIO
addr 1) fails to acquire a link if no Ethernet cable is connected at
power-on; the port stays dead even after a cable is later inserted, and
only a network restart recovers it.

The AR803x family enables hibernation mode by default, this setting
overrides it.

Signed-off-by: Grische <github@grische.xyz>
Link: openwrt/openwrt#23208
Signed-off-by: Robert Marko <robimarko@gmail.com>

Author: grische

target/linux/ipq806x/dts/qcom-ipq8068-ap3935.dts

@@ -314,6 +314,7 @@
 
 	phy1: ethernet-phy@1 {
 		reg = <1>;
+		qca,disable-hibernation-mode;
 	};
 
 	phy2: ethernet-phy@2 {