recovery: Set RECOVERY_FSTAB_VERSION

Tuna devices use the new recovery.fstab format, set
RECOVERY_FSTAB_VERSION=2 to indicate this.

Change-Id: I3284b345480d7db6458270eca56ed8e5b8dbd2c4
Tuna : OTG support

Fix otg support for 4.3

Change-Id: Iab78b75b507b6c12fb2c60e7410d4957c4ad7867