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/libevdevc/default.nix

@@ -0,0 +1,29 @@
+{ lib, stdenv, fetchFromGitHub, coreutils, pkg-config, glib, jsoncpp }:
+
+stdenv.mkDerivation rec {
+  pname = "libevdevc";
+  version = "2.0.1";
+  src = fetchFromGitHub {
+    owner = "hugegreenbug";
+    repo = "libevdevc";
+    rev = "v${version}";
+    sha256 = "0ry30krfizh87yckmmv8n082ad91mqhhbbynx1lfidqzb6gdy2dd";
+  };
+
+  postPatch = ''
+    substituteInPlace common.mk \
+      --replace /bin/echo ${coreutils}/bin/echo
+    substituteInPlace include/module.mk \
+      --replace /usr/include /include
+  '';
+
+  makeFlags = [ "DESTDIR=$(out)" "LIBDIR=/lib" ];
+
+  meta = with lib; {
+    description = "ChromiumOS libevdev. Renamed to avoid conflicts with the standard libevdev found in Linux distros";
+    license = licenses.bsd3;
+    platforms = platforms.linux;
+    homepage = "https://chromium.googlesource.com/chromiumos/platform/libevdev/";
+    maintainers = with maintainers; [ kcalvinalvin ];
+  };
+}