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/error-inject/default.nix

@@ -0,0 +1,68 @@
+{ lib, stdenv, fetchgit
+, bison, flex, rasdaemon
+}:
+
+{
+  edac-inject = rasdaemon.inject;
+
+  mce-inject = stdenv.mkDerivation rec {
+    pname = "mce-inject";
+    version = "4cbe46321b4a81365ff3aafafe63967264dbfec5";
+
+    src = fetchgit {
+      url = "git://git.kernel.org/pub/scm/utils/cpu/mce/mce-inject.git";
+      rev = version;
+      sha256 = "0gjapg2hrlxp8ssrnhvc19i3r1xpcnql7xv0zjgbv09zyha08g6z";
+    };
+
+    nativeBuildInputs = [ bison flex ];
+
+    makeFlags = [ "destdir=${placeholder "out"}" ];
+
+    postInstall = ''
+      mkdir $out/sbin
+      mv $out/usr/sbin/mce-inject $out/sbin/mce-inject
+
+      mkdir $out/test
+      cp test/* $out/test/.
+    '';
+
+    meta = with lib; {
+      description = "MCE error injection tool";
+      license = licenses.gpl2Only;
+      platforms = platforms.linux;
+      maintainers = [ maintainers.evils ];
+    };
+  };
+
+  aer-inject = stdenv.mkDerivation rec {
+    pname = "aer-inject";
+    version = "9bd5e2c7886fca72f139cd8402488a2235957d41";
+
+    src = fetchgit {
+      url = "git://git.kernel.org/pub/scm/linux/kernel/git/gong.chen/aer-inject.git";
+      rev = version;
+      sha256 = "0bh6mzpk2mr4xidkammmkfk21b4dbq793qjg25ryyxd1qv0c6cg4";
+    };
+
+    nativeBuildInputs = [ bison flex ];
+
+    # how is this necessary?
+    makeFlags = [ "DESTDIR=${placeholder "out"}" ];
+
+    postInstall = ''
+      mkdir $out/bin
+      mv $out/usr/local/aer-inject $out/bin/aer-inject
+
+      mkdir -p $out/examples
+      cp examples/* $out/examples/.
+    '';
+
+    meta = with lib; {
+      description = "PCIE AER error injection tool";
+      license = licenses.gpl2Only;
+      platforms = platforms.linux;
+      maintainers = [ maintainers.evils ];
+    };
+  };
+}