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/applications/misc/emem/default.nix

@@ -0,0 +1,39 @@
+{ lib, stdenv, fetchurl, jdk }:
+
+stdenv.mkDerivation rec {
+  pname = "emem";
+  version = "0.2.50";
+
+  inherit jdk;
+
+  src = fetchurl {
+    url = "https://github.com/ebzzry/${pname}/releases/download/v${version}/${pname}.jar";
+    sha256 = "18x3s3jrph8k3pc75jgwkfqazygpsx93zjxx68zms58my17cybh1";
+  };
+
+  dontUnpack = true;
+
+  buildPhase = ''
+    mkdir -p $out/bin $out/share/java
+  '';
+
+  installPhase = ''
+    cp $src $out/share/java/${pname}.jar
+
+    cat > $out/bin/${pname} << EOF
+#! $SHELL
+$jdk/bin/java -jar $out/share/java/${pname}.jar "\$@"
+EOF
+
+    chmod +x $out/bin/${pname}
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/ebzzry/emem";
+    description = "A trivial Markdown to HTML converter";
+    sourceProvenance = with sourceTypes; [ binaryBytecode ];
+    license = licenses.epl10;
+    maintainers = [ maintainers.ebzzry ];
+    platforms = platforms.unix;
+  };
+}