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/mobile/androidenv/mkrepo.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p "ruby.withPackages (pkgs: with pkgs; [ slop nokogiri ])"
+
+set -e
+
+pushd "$(dirname "$0")" &>/dev/null || exit 1
+
+echo "Writing repo.json" >&2
+ruby mkrepo.rb \
+    --packages ./xml/repository2-1.xml \
+    --images ./xml/android-sys-img2-1.xml \
+    --images ./xml/android-tv-sys-img2-1.xml \
+    --images ./xml/android-wear-cn-sys-img2-1.xml \
+    --images ./xml/android-wear-sys-img2-1.xml \
+    --images ./xml/google_apis-sys-img2-1.xml \
+    --images ./xml/google_apis_playstore-sys-img2-1.xml \
+    --addons ./xml/addon2-1.xml > repo.json
+
+popd &>/dev/null