dlxj: update fstab
* mark boot and recovery for recoveryonly
* update deprecated prefix on usb storage
dlx: mount and firmware fixups

* create firmware symlinks at build time
* mount all partitions via fs_mgr

Change-Id: If50b4dce389455dc8ca668c93cb169f0afcb2707

Conflicts:
	full_dlx.mk
	rootdir/Android.mk
	rootdir/etc/init.dlxj.rc
sepolicy: add device-specific sepolicies

Change-Id: Ia337b3448f20e8e77ea0c4d07a0d7090d7ba34f7