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/mtdev/default.nix

@@ -0,0 +1,25 @@
+{ lib, stdenv, fetchurl }:
+
+stdenv.mkDerivation rec {
+  pname = "mtdev";
+  version = "1.1.6";
+
+  src = fetchurl {
+    url = "https://bitmath.org/code/mtdev/${pname}-${version}.tar.bz2";
+    sha256 = "1q700h9dqcm3zl6c3gj0qxxjcx6ibw2c51wjijydhwdcm26v5mqm";
+  };
+
+  meta = with lib; {
+    homepage = "http://bitmath.org/code/mtdev/";
+    description = "Multitouch Protocol Translation Library";
+    longDescription = ''
+      The mtdev is a stand-alone library which transforms all variants of
+      kernel MT events to the slotted type B protocol. The events put into
+      mtdev may be from any MT device, specifically type A without contact
+      tracking, type A with contact tracking, or type B with contact tracking.
+      See the kernel documentation for further details.
+    '';
+    license = licenses.mit;
+    platforms = platforms.linux;
+  };
+}