tf700t: fixups for edify and fstab.cardhu

 * Fixed common.py and tf700t_ota_from_target_files to correctly use
   the new RECOVERY_FSTAB_VERISON := 2. Fixes compile issues like:
   http://paste.ubuntu.com/5957588/ with RECOVERY_FSTAB_VERSION even
   set.
 * Corrected formatting and added additional recoveryonly partitions
   to properly be able to backup partitions and data.
 * Deleted deprecated recovery.fstab.
 * Fix recovery

Patch Set 2: Fix additional formatting in fstab.cardhu
Patch Set 5: Fix mounting of /data to /sdcard for flashing zip's from
             internal storage.
Patch Set 6: Update commit message.

Change-Id: Iac8ea9f657b7bab6e3700560eb306310b4e85c0e