jf: fix fstab

fstab: make it pretty and remove /efs and /firmware
init.target.rc:  mount /efs and /firmware here, fixes boot.img that were not working after moving these to fstab.

patch set 2:  whoops, broke sdcard in 1st patch

Change-Id: Ic49c2872f42f4bec4445eea6e886f91a194f51a4