libstagefright: ifdef the audio_defs.h include for QCOM_DIRECTTRACK

Devices that use BOARD_USES_LEGACY_ALSA_AUDIO do not use this file,
this was breaking build for all 8960 devices.

Change-Id: Ic0ae606615f7ccc72cef9836d52bfa7045f326ae
Camera: Support obtaining camera memory from MemoryHeapIon

* Exynos 5 devices want the ION file descriptor from MemoryHeapIon

Change-Id: I9e445cf24c15713f713181667e7b7caa1a96592e
Include more Samsung decoders to set native color format

Change-Id: I6be1517083ebe958c2a2984f22b9e9fc6dce3c9f
stagefright: Adjust confidence threshold for extended sniffers

 * Some sniffers return 0.2 for cases where they only find an audio
   track in some containers.
 * Change the comparison to also examine files right on this threshold.
 * This allows us to score ONE FUCKING HUNDRED PERCENT on the Antutu
   Video Test \o/

Change-Id: I78b6ab8a634771e0e290f669801f5b08d6a32a51