Switch to Mms-caf

Change-Id: Ic3d143c4304f17a2aea3ce43b19214641ade13ad
(cherry picked from commit 298c7f1fc2e1233ec28bd59e085cb50a68689443)
Enable FFMPEG and Stagefright plugins

Change-Id: Ia41715481d70040f9aa53c2a1cd080758ef4e96f
(cherry picked from commit aad6ca50e0d9abecbddae8b468fb83c2e9fb8514)