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/tools/graphics/zxing/zxing.sh

@@ -0,0 +1,18 @@
+#! /bin/sh
+choice="$1";
+shift
+case "$choice" in
+    encode | create | write | CommandLineEncoder)
+        zxing-cmdline-encoder "$@";
+        ;;
+    decode | read | run | CommandLineRunner)
+        zxing-cmdline-runner "$@";
+        ;;
+    help | usage | --help | --usage | -h)
+        zxing read;
+        zxing write;
+        ;;
+    *)
+        zxing read "$choice" "$@"
+        ;;
+esac