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/development/libraries/audio/libinstpatch/default.nix

@@ -0,0 +1,29 @@
+{ lib, stdenv, fetchFromGitHub, cmake, pkg-config, glib, libsndfile }:
+
+stdenv.mkDerivation rec {
+  pname = "libinstpatch";
+  version = "1.1.6";
+
+  src = fetchFromGitHub {
+    owner = "swami";
+    repo = pname;
+    rev = "v${version}";
+    sha256 = "sha256-OU6/slrPDgzn9tvXZJKSWbcFbpS/EAsOi52FtjeYdvA=";
+  };
+
+  nativeBuildInputs = [ cmake pkg-config ];
+
+  propagatedBuildInputs = [ glib libsndfile ]; # Both are needed for includes.
+
+  cmakeFlags = [
+    "-DLIB_SUFFIX=" # Install in $out/lib.
+  ];
+
+  meta = with lib; {
+    homepage = "http://www.swamiproject.org/";
+    description = "MIDI instrument patch files support library";
+    license = licenses.lgpl21;
+    maintainers = with maintainers; [ orivej ];
+    platforms = platforms.unix;
+  };
+}