stagefright: add Samsung S3D support

Taken from insignal:
http://git.insignal.co.kr/insignal/arndale_octa-jb_mr1.1/android/platform/frameworks/av/commit/?h=arndale_octa-jb_mr1.1&id=f3667253827f206e455b54df47234a2d4db05826

Requires a device specific gralloc header with the following define:
GRALLOC_USAGE_PRIVATE_NONSECURE.

Change-Id: Ie1bb31b8b6fa38cfc263e2b327eb914e476c912c