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/os-specific/linux/extrace/default.nix

@@ -0,0 +1,28 @@
+{ lib, stdenv, fetchFromGitHub }:
+
+stdenv.mkDerivation rec {
+  pname = "extrace";
+  version = "0.9";
+
+  src = fetchFromGitHub {
+    owner = "leahneukirchen";
+    repo = "extrace";
+    rev = "v${version}";
+    hash = "sha256-Jy/Ac3NcqBkW0kHyypMAVUGAQ41qWM96BbLAym06ogM=";
+  };
+
+  makeFlags = [ "PREFIX=${placeholder "out"}" ];
+
+  postInstall = ''
+    install -dm755 "$out/share/licenses/extrace/"
+    install -m644 LICENSE "$out/share/licenses/extrace/LICENSE"
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/leahneukirchen/extrace";
+    description = "Trace exec() calls system-wide";
+    license = with licenses; [ gpl2Plus bsd2 ];
+    platforms = platforms.linux;
+    maintainers = [ maintainers.leahneukirchen ];
+  };
+}