Revert "mediatek: backport mt7622 dts fix for mt7531 switch id to 6.1"

This reverts commit 3fe239fcf8d0ea91b947af25fd28a6133aba93c6.
Now that we switched to Linux 6.6 this is no longer needed, and resulted
in a left-over file because it's removal was not included in the commit
removing all the other files intended for Linux 6.1.

Signed-off-by: Daniel Golle <[email protected]>

target/linux/mediatek/patches-6.1/181-mt7622_fix_dts_mt7531_reg.patch

@@ -1,28 +0,0 @@
---- a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
-+++ b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
-@@ -152,9 +152,9 @@
- 		#address-cells = <1>;
- 		#size-cells = <0>;
- 
--		switch@0 {
-+		switch@1f {
- 			compatible = "mediatek,mt7531";
--			reg = <0>;
-+			reg = <31>;
- 			interrupt-controller;
- 			#interrupt-cells = <1>;
- 			interrupt-parent = <&pio>;
---- a/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts
-+++ b/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts
-@@ -117,9 +117,9 @@
- 		#address-cells = <1>;
- 		#size-cells = <0>;
- 
--		switch@0 {
-+		switch@1f {
- 			compatible = "mediatek,mt7531";
--			reg = <0>;
-+			reg = <31>;
- 			reset-gpios = <&pio 54 0>;
- 
- 			ports {