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/audio/freac/default.nix

@@ -0,0 +1,38 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+
+, boca
+, smooth
+, systemd
+}:
+
+stdenv.mkDerivation rec {
+  pname = "freac";
+  version = "1.1.6";
+
+  src = fetchFromGitHub {
+    owner = "enzo1982";
+    repo = "freac";
+    rev = "v${version}";
+    sha256 = "sha256-PDFc/RhxIe6M3lfVHE1QmJnu5Sy+q/yrXrXPV/8X51o=";
+  };
+
+  buildInputs = [
+    boca
+    smooth
+    systemd
+  ];
+
+  makeFlags = [
+    "prefix=$(out)"
+  ];
+
+  meta = with lib; {
+    description = "The fre:ac audio converter project";
+    license = licenses.gpl2Plus;
+    homepage = "https://www.freac.org/";
+    maintainers = with maintainers; [ shamilton ];
+    platforms = platforms.linux;
+  };
+}