[automerger] Merge "stagefright: avoid buffer overflow in base64 decoder" into...

[automerger] Merge "stagefright: avoid buffer overflow in base64 decoder" into lmp-dev am: cddbfe54 am: 3c2b8586 am: 5dc58ac3 am: c42e7826 am: 5c9fc688 am: bc0b041f am: 21c75b8f am: 93b2a3f4 am: 88fd67f2 am: fb1443d4

Change-Id: I3d75b383cd52f18da7935da6266d7e87f6e2fd72