recovery: Set RECOVERY_FSTAB_VERSION

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

Change-Id: I3284b345480d7db6458270eca56ed8e5b8dbd2c4
overlay: Remove config_wifi_p2p_support

Does not exist in 4.3

Change-Id: Ia1942053bf7e0d7db211b955615bc18159b3dd95