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/gphoto2/default.nix

@@ -0,0 +1,50 @@
+{ lib, stdenv, fetchFromGitHub, autoreconfHook, pkg-config
+, gettext
+, libexif
+, libgphoto2
+, libjpeg
+, libtool
+, popt
+, readline
+}:
+
+stdenv.mkDerivation rec {
+  pname = "gphoto2";
+  version = "2.5.28";
+
+  src = fetchFromGitHub {
+    owner = "gphoto";
+    repo = "gphoto2";
+    rev = "v${version}";
+    sha256 = "sha256-t5EnM4WaDbOTPM+rJW+hQxBgNErnnZEN9lZvxTKoDhA=";
+  };
+
+  nativeBuildInputs = [
+    autoreconfHook
+    pkg-config
+    gettext
+    libtool
+  ];
+
+  buildInputs = [
+    libexif
+    libgphoto2
+    libjpeg
+    popt
+    readline
+  ];
+
+  meta = with lib; {
+    description = "A ready to use set of digital camera software applications";
+    longDescription = ''
+
+      A set of command line utilities for manipulating over 1400 different
+      digital cameras. Through libgphoto2, it supports PTP, MTP, and much more..
+
+    '';
+    homepage = "http://www.gphoto.org/";
+    license = licenses.gpl2Plus;
+    platforms = platforms.unix;
+    maintainers = [ maintainers.jcumming ];
+  };
+}