Add back AsV4L2[H264/VP8/VP9]Picture function

These functions need to be overridden by V4L2[H264/VP8/VP9]Picture
implementation and shouldn't be removed.

Bug: 62360273
Test: mmm external/v4l2_codec2
Change-Id: I58908610fe473f4076568d11c74de605b6960c10
6 files changed
tree: db68aa9808e143bba0775d6ef89329f62919f05c
  1. vda/
  2. Android.mk
  3. MODULE_LICENSE_BSD
  4. NOTICE