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

[automerger] Merge "stagefright: avoid buffer overflow in base64 decoder" into klp-dev am: 9e41bec8  -s ours am: c1e3b0cd am: f6ae88fd am: 398d2167 am: 94b2e04a am: 35a1e90c am: dc3b1f6a am: 6fc85a67 am: d3929710

Change-Id: Ifb3a880e644220deb0049317f56bb6946fbad256