hid-ite8291r3: add updateScript (#461621)

pkgs/os-specific/linux/hid-ite8291r3/default.nix

@@ -4,6 +4,7 @@
   fetchFromGitHub,
   kernel,
   kernelModuleMakeFlags,
+  nix-update-script,
 }:
 
 stdenv.mkDerivation rec {
@@ -30,6 +31,10 @@ stdenv.mkDerivation rec {
     runHook postInstall
   '';
 
+  passthru.updateScript = nix-update-script {
+    extraArgs = [ "--version=branch" ];
+  };
+
   meta = with lib; {
     description = "Linux driver for the ITE 8291 RGB keyboard backlight controller";
     homepage = "https://github.com/pobrn/hid-ite8291r3/";