add x1e ath12k firmware patch

pkgs/by-name/x1/x1e80100-linux-firmware/firmware.patch

@@ -0,0 +1,12 @@
+--- a/board-2.json	2025-07-24 19:46:44.712406478 +0000
++++ b/board-2.json	2025-07-24 19:46:42.655405480 +0000
+@@ -27,7 +27,8 @@
+             },
+             {
+                 "names": [
+-                    "bus=pci,vendor=17cb,device=1107,subsystem-vendor=17cb,subsystem-device=3378,qmi-chip-id=2,qmi-board-id=255"
++                    "bus=pci,vendor=17cb,device=1107,subsystem-vendor=17cb,subsystem-device=3378,qmi-chip-id=2,qmi-board-id=255",
++                    "bus=pci,vendor=17cb,device=1107,subsystem-vendor=17cb,subsystem-device=1107,qmi-chip-id=2,qmi-board-id=255"
+                 ],
+                 "data": "bus=pci,vendor=17cb,device=1107,subsystem-vendor=17cb,subsystem-device=3378,qmi-chip-id=2,qmi-board-id=255.bin"
+             },

pkgs/by-name/x1/x1e80100-linux-firmware/package.nix

@@ -0,0 +1,11 @@
+{ ath-tools, linux-firmware }:
+linux-firmware.overrideAttrs (final: {
+  postInstall = ''
+    mkdir temp
+    cd temp || exit
+    ${ath-tools.ath12k-tools}/bin/ath12k-bdencoder -e $out/lib/firmware/ath12k/WCN7850/hw2.0/board-2.bin
+    patch -p1 < ${./firmware.patch}
+    ${ath-tools.ath12k-tools}/bin/ath12k-bdencoder -c board-2.json
+    cp board-2.bin $out/lib/firmware/ath12k/WCN7850/hw2.0/board-2.bin
+  '';
+})