Add missing copyright header for the cross-build scripts

cross-compile-chroot.sh

 #!/bin/bash
-# build script to compile anbox for armhf devices
 #
+# Copyright © 2016 Canonical Ltd.
+#
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License version 3,
+# as published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Taken from the Mir Project (https://launchpad.net/mir)
+
 set -e
 
 usage() {

scripts/setup-partial-armhf-chroot.sh

 #!/bin/bash
 #
-# TODO: Rename this file without "armhf" when it's safe to do so.
+# Copyright © 2016 Canonical Ltd.
 #
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License version 3,
+# as published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# Taken from the Mir Project (https://launchpad.net/mir)
 
 set -e