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/compression/mozlz4a/default.nix

@@ -0,0 +1,33 @@
+{ lib, stdenv, fetchurl, python3, runtimeShell }:
+
+stdenv.mkDerivation rec {
+  pname = "mozlz4a";
+  version = "2018-08-23";
+  # or fetchFromGitHub(owner,repo,rev) or fetchgit(rev)
+  src = fetchurl {
+    url = "https://gist.githubusercontent.com/kaefer3000/73febe1eec898cd50ce4de1af79a332a/raw/a266410033455d6b4af515d7a9d34f5afd35beec/mozlz4a.py";
+    sha256 = "1d1ai062kdms34bya9dlykkx011rj8d8nh5l7d76xj8k9kv4ssq6";
+  };
+
+  dontUnpack = true;
+
+  installPhase = ''
+    mkdir -p "$out/bin" "$out/${python3.sitePackages}/"
+    cp "${src}" "$out/${python3.sitePackages}/mozlz4a.py"
+
+    echo "#!${runtimeShell}" >> "$out/bin/mozlz4a"
+    echo "export PYTHONPATH='$PYTHONPATH'" >> "$out/bin/mozlz4a"
+    echo "'${python3}/bin/python' '$out/${python3.sitePackages}/mozlz4a.py' \"\$@\"" >> "$out/bin/mozlz4a"
+    chmod a+x "$out/bin/mozlz4a"
+  '';
+
+  buildInputs = [ python3 python3.pkgs.lz4 ];
+
+  meta = {
+    description = "A script to handle Mozilla's mozlz4 files";
+    license = lib.licenses.bsd2;
+    maintainers = [lib.maintainers.raskin];
+    platforms = lib.platforms.linux;
+    homepage = "https://gist.githubusercontent.com/Tblue/62ff47bef7f894e92ed5";
+  };
+}