[][tphy][patch][fix patch conflict]

[Description]
Fix elder patch conflict in kernel-5.4.219

[Release-log]
N/A

Change-Id: I47642c61643fc9187fa8eb1d0a7afd17d3eb50df
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6690949
diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988.dtsi b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988.dtsi
index 6cc0f9c..274f897 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988.dtsi
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7988.dtsi
@@ -952,6 +952,7 @@
 			      "dma_ck";
 		#address-cells = <2>;
 		#size-cells = <2>;
+		mediatek,p0_speed_fixup;
 		status = "okay";
 	};
 
@@ -1026,6 +1027,8 @@
 			clocks = <&system_clk>;
 			clock-names = "ref";
 			#phy-cells = <1>;
+			mediatek,usb3-pll-ssc-delta;
+			mediatek,usb3-pll-ssc-delta1;
 			status = "okay";
 		};
 	};