uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/servers/monitoring/grafana/plugins/grafana-plugin.nix

@@ -0,0 +1,28 @@
+{ stdenvNoCC, fetchurl, unzip }:
+
+{ pname, version, zipHash, meta ? {}, passthru ? {}, ... }@args:
+stdenvNoCC.mkDerivation ({
+  inherit pname version;
+
+  src = fetchurl {
+    name = "${pname}-${version}.zip";
+    url = "https://grafana.com/api/plugins/${pname}/versions/${version}/download";
+    hash = zipHash;
+  };
+
+  nativeBuildInputs = [ unzip ];
+
+  installPhase = ''
+    cp -R "." "$out"
+    chmod -R a-w "$out"
+    chmod u+w "$out"
+  '';
+
+  passthru = {
+    updateScript = [ ./update-grafana-plugin.sh pname ];
+  } // passthru;
+
+  meta = {
+    homepage = "https://grafana.com/grafana/plugins/${pname}";
+  } // meta;
+} // (builtins.removeAttrs args [ "pname" "version" "sha256" "meta" ]))