ramips: fix PCIe port number for ZBT WE3526

From the kernel log, we are using PCIe port 1 and 2.

dmesg:
```
[ 0.963526] mt7621-pci 1e140000.pcie: pcie0 no card, disable it (RST & CLK)
[ 0.970432] mt7621-pci 1e140000.pcie: PCIE1 enabled
[ 0.975312] mt7621-pci 1e140000.pcie: PCIE2 enabled
[ 1.071442] pci 0000:01:00.0: [14c3:7662] type 00 class 0x028000
[ 1.130382] pci 0000:02:00.0: [14c3:7603] type 00 class 0x028000
```

Fixes: https://github.com/openwrt/openwrt/issues/16000
Signed-off-by: Shiji Yang <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/16009
Signed-off-by: Hauke Mehrtens <[email protected]>

target/linux/ramips/dts/mt7621_zbtlink_zbt-we3526.dts

@@ -96,7 +96,7 @@
 	status = "okay";
 };
 
-&pcie0 {
+&pcie1 {
 	wifi@0,0 {
 		compatible = "pci14c3,7662";
 		reg = <0x0000 0 0 0 0>;
@@ -110,7 +110,7 @@
 	};
 };
 
-&pcie1 {
+&pcie2 {
 	wifi@0,0 {
 		compatible = "pci14c3,7603";
 		reg = <0x0000 0 0 0 0>;

target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/05-wifi-migrate

@@ -63,7 +63,8 @@ netgear,wac104|\
 netgear,wndr3700-v5)
 	migrate_radio '1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0' '1e140000.pcie/pci0000:00/0000:00:02.0/0000:02:00.0'
 	;;
-zbtlink,zbt-we1326)
+zbtlink,zbt-we1326|\
+zbtlink,zbt-we3526)
 	migrate_radio '1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0' '1e140000.pcie/pci0000:00/0000:00:02.0/0000:02:00.0'
 	migrate_radio '1e140000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0' '1e140000.pcie/pci0000:00/0000:00:01.0/0000:01:00.0'
 	;;