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/libiberty/default.nix

@@ -0,0 +1,31 @@
+{ lib, stdenv, buildPackages
+, staticBuild ? stdenv.hostPlatform.isStatic
+}:
+
+let inherit (buildPackages.buildPackages) gcc; in
+
+stdenv.mkDerivation {
+  pname = "libiberty";
+  version = "${gcc.cc.version}";
+
+  inherit (gcc.cc) src;
+
+  outputs = [ "out" "dev" ];
+
+  postUnpack = "sourceRoot=\${sourceRoot}/libiberty";
+
+  configureFlags = [ "--enable-install-libiberty" ]
+    ++ lib.optional (!staticBuild) "--enable-shared";
+
+  postInstall = lib.optionalString (!staticBuild) ''
+    cp pic/libiberty.a $out/lib*/libiberty.a
+  '';
+
+  meta = with lib; {
+    homepage = "https://gcc.gnu.org/";
+    license = licenses.lgpl2;
+    description = "Collection of subroutines used by various GNU programs";
+    maintainers = with maintainers; [ abbradar ericson2314 ];
+    platforms = platforms.unix;
+  };
+}