realtek: hpe_1920-8g: add phy-handle for SFP ports

The switch driver actually expects every port to have a PHY handle, and
several branches in the code determine if a port is valid by checking
for a non-zero phy field.

Signed-off-by: Jan Hoffmann <[email protected]>

target/linux/realtek/dts-5.10/rtl8380_hpe_1920-8g.dts

@@ -87,6 +87,7 @@
 		port@24 {
 			reg = <24>;
 			label = "lan9";
+			phy-handle = <&phy24>;
 			phy-mode = "1000base-x";
 			managed = "in-band-status";
 			sfp = <&sfp0>;
@@ -95,6 +96,7 @@
 		port@26 {
 			reg = <26>;
 			label = "lan10";
+			phy-handle = <&phy26>;
 			phy-mode = "1000base-x";
 			managed = "in-band-status";
 			sfp = <&sfp1>;

target/linux/realtek/dts-5.15/rtl8380_hpe_1920-8g.dts

@@ -87,6 +87,7 @@
 		port@24 {
 			reg = <24>;
 			label = "lan9";
+			phy-handle = <&phy24>;
 			phy-mode = "1000base-x";
 			managed = "in-band-status";
 			sfp = <&sfp0>;
@@ -95,6 +96,7 @@
 		port@26 {
 			reg = <26>;
 			label = "lan10";
+			phy-handle = <&phy26>;
 			phy-mode = "1000base-x";
 			managed = "in-band-status";
 			sfp = <&sfp1>;