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/tools/nix/nar-serve/default.nix

@@ -0,0 +1,26 @@
+{ buildGoModule
+, fetchFromGitHub
+, lib
+}:
+buildGoModule rec {
+  pname = "nar-serve";
+  version = "0.4.0";
+
+  src = fetchFromGitHub {
+    owner = "numtide";
+    repo = "nar-serve";
+    rev = "v${version}";
+    hash = "sha256-h/pzKRXgcGTpr1YUKppDa+iTLKak/PGhbYa8ZczWj1U=";
+  };
+
+  vendorSha256 = "sha256-eW+cul/5qJocpKV/6azxj7HTmkezDw6dNubPtAOP5HU=";
+
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Serve NAR file contents via HTTP";
+    homepage = "https://github.com/numtide/nar-serve";
+    license = licenses.mit;
+    maintainers = with maintainers; [ rizary ];
+  };
+}