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/os-specific/linux/catfs/default.nix

@@ -0,0 +1,47 @@
+{ lib, rustPlatform, fetchFromGitHub
+, fetchpatch
+, fuse
+, pkg-config
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "catfs";
+  version = "unstable-2020-03-21";
+
+  src = fetchFromGitHub {
+    owner = "kahing";
+    repo = pname;
+    rev = "daa2b85798fa8ca38306242d51cbc39ed122e271";
+    sha256 = "0zca0c4n2p9s5kn8c9f9lyxdf3df88a63nmhprpgflj86bh8wgf5";
+  };
+
+  cargoSha256 = "1agcwq409s40kyij487wjrp8mj7942r9l2nqwks4xqlfb0bvaimf";
+
+  cargoPatches = [
+    # update cargo lock
+    (fetchpatch {
+      url = "https://github.com/kahing/catfs/commit/f838c1cf862cec3f1d862492e5be82b6dbe16ac5.patch";
+      sha256 = "1r1p0vbr3j9xyj9r1ahipg4acii3m4ni4m9mp3avbi1rfgzhblhw";
+    })
+  ];
+
+  nativeBuildInputs = [ pkg-config ];
+
+  buildInputs = [ fuse ];
+
+  # require fuse module to be active to run tests
+  # instead, run command
+  doCheck = false;
+  doInstallCheck = true;
+  installCheckPhase = ''
+    $out/bin/catfs --help > /dev/null
+  '';
+
+  meta = with lib; {
+    description = "Caching filesystem written in Rust";
+    homepage = "https://github.com/kahing/catfs";
+    license = licenses.asl20;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ jonringer ];
+  };
+}