openaes data encryption: turn off by default

Until the code can be removed, we will turn off openaes encryption
of data files by default. There are many restore issues that are
caused with openaes enabled. For maintainers who want to enable it
set TW_EXCLUDE_ENCRYPTED_BACKUPS := false on BoardConfig.

Change-Id: Ie284b03c7cc4c77a0a9dbcc460817fe3fe08b839
1 file changed