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/blockchains/sparrow/openimajgrabber.nix

@@ -0,0 +1,40 @@
+{ stdenv
+, lib
+, fetchFromGitHub
+, libv4l
+}:
+stdenv.mkDerivation rec {
+  pname = "openimajgrabber";
+  version = "1.3.10";
+
+  src = fetchFromGitHub {
+    owner = "openimaj";
+    repo = "openimaj";
+    rev = "openimaj-${version}";
+    sha256 = "sha256-Y8707ovE7f6Fk3cJ+PtwvzNpopgH5vlF55m2Xm4hjYM=";
+  };
+
+  buildInputs = [ libv4l ];
+
+  # These build instructions come from build.sh
+  buildPhase = ''
+    pushd hardware/core-video-capture/src-native/linux
+    g++ -fPIC -g -c OpenIMAJGrabber.cpp
+    g++ -fPIC -g -c capture.cpp
+    g++ -shared -Wl,-soname,OpenIMAJGrabber.so -o OpenIMAJGrabber.so OpenIMAJGrabber.o capture.o -lv4l2 -lrt -lv4lconvert
+    popd
+  '';
+
+  installPhase = ''
+    mkdir -p $out/lib
+    cp hardware/core-video-capture/src-native/linux/OpenIMAJGrabber.so $out/lib
+  '';
+
+  meta = with lib; {
+    description = "A collection of libraries and tools for multimedia (images, text, video, audio, etc.) content analysis and content generation. This package only builds the OpenIMAJGrabber for Linux.";
+    homepage = "http://www.openimaj.org";
+    license = licenses.bsd0;
+    maintainers = with maintainers; [ emmanuelrosa _1000101 ];
+    platforms = platforms.linux;
+  };
+}