mediatek: D-Link AQUILA PRO AI M60 A1: Fixed phy6 DTS settings

Settings for phy6 can be simplified in the DTS

Signed-off-by: Roland Reinl <reinlroland+github@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/17430


Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

target/linux/mediatek/dts/mt7986a-dlink-aquila-pro-ai-m60-a1.dts

@@ -87,9 +87,8 @@
 		reset-post-delay-us = <1000000>;
 
 		phy6: phy@6 {
-			compatible = "maxlinear,gpy211", "ethernet-phy-ieee802.3-c45";
+			compatible = "ethernet-phy-ieee802.3-c45";
 			reg = <6>;
-			phy-mode = "2500base-x";
 		};
 
 		switch@1f {