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/wtk/builder.sh

@@ -0,0 +1,27 @@
+source $stdenv/setup
+
+mkdir unzipped
+pushd unzipped
+unzip $src || true
+popd
+
+mkdir -p $out
+mv unzipped/* $out/
+
+# Remove crap in the root directory.
+for file in $out/*
+do
+  if test -f $file ; then
+    rm $file
+  fi
+done
+
+# Set the dynamic linker.
+rpath=
+for i in $libraries; do
+    rpath=$rpath${rpath:+:}$i/lib
+done
+find $out -type f -perm -0100 \
+    -exec patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" {} \;
+find $out -type f -perm -0100 \
+    -exec patchelf --set-rpath "$rpath" {} \;