[molecules] add BeagleBoard xM preliminary image specs

scripts/mkloopcard_beagleboard_xm_chroot_hook.sh

@@ -0,0 +1,28 @@
+#!/bin/sh
+# This script is executed inside the image chroot before packing up.
+# Architecture/platform specific code goes here, like kernel install
+# and configuration
+
+env-update
+. /etc/profile
+
+# enable sshd by default
+rc-update add sshd default
+
+# TODO: error out here when linux-beaglebone is there
+# "equo update" is done by inner_source_chroot_update script
+# which directive is appended by iso_build.sh script
+equo install sys-kernel/linux-beagle
+
+eselect uimage set 1
+
+# setup root password to... root!
+echo root:root | chpasswd
+# cleaning up deps
+rc-update --update
+
+# setup serial console
+sed -i "s;s0:.*;s0:12345:respawn:/sbin/agetty 115200 ttyO2 vt100;" /etc/inittab || exit 1
+
+exit 0
+