Add Second RootFS location to the initramFS for TP (Bug #621)
using ext3fs may conflict with other systems in that space
Add luneos-root mountpoint for the luneos RootFS so that:
the init script
1) looks for luneos-root first and mounts it as the new rootfs before switchroot
2) looks for ext3fs 2nd and mounts it as the new rootfs before switchroot
3) switchroots to the appropriate rootfs.