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/msr-tools/default.nix

@@ -0,0 +1,26 @@
+{ lib, stdenv, fetchurl, unzip }:
+
+stdenv.mkDerivation rec {
+  pname = "msr-tools";
+  version = "1.3";
+
+  src = fetchurl {
+    url = "https://01.org/sites/default/files/downloads/msr-tools/${pname}-${version}.zip";
+    sha256 = "07hxmddg0l31kjfmaq84ni142lbbvgq6391r8bd79wpm819pnigr";
+  };
+
+  nativeBuildInputs = [ unzip ];
+
+  preInstall = ''
+    mkdir -p $out/bin
+    substituteInPlace Makefile \
+      --replace /usr/sbin $out/bin
+  '';
+
+  meta = with lib; {
+    description = "Tool to read/write from/to MSR CPU registers on Linux";
+    license = licenses.gpl2;
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ peterhoeg ];
+  };
+}