scripts: Add yocto-compat-layer-wrapper

This script will be used to create it's own build directory to make
runs of yocto-compat-layer.py againts layers isolated.

Example:

$ source oe-init-build-env
$ yocto-compat-layer-wrapper LAYER_DIR LAYER_DIR_N

[YOCTO #11164]

(From OE-Core rev: 9414382f96d4a5d81cca440c75140950ca515aab)

Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

scripts/yocto-compat-layer-wrapper

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+
+# Yocto Project compatibility layer tool wrapper
+#
+# Creates a temprary build directory to run Yocto Project Compatible
+# script to avoid a contaminated environment.
+#
+# Copyright (C) 2017 Intel Corporation
+# Released under the MIT license (see COPYING.MIT)
+
+if [ -z "$BUILDDIR" ]; then
+	echo "Please source oe-init-build-env before run this script."
+	exit 2
+fi
+
+base_dir=$(realpath $BUILDDIR/../)
+cd $base_dir
+
+build_dir=$(mktemp -p $base_dir -d -t build-XXXX)
+
+source oe-init-build-env $build_dir
+yocto-compat-layer.py "$@"
+retcode=$?
+
+rm -rf $build_dir
+
+exit $retcode