libFLAC: merge master from Xiph

remote: https://git.xiph.org/flac.git
commit: 775eb93

Bug: 18872897
Bug: 18910747
Change-Id: I6e450e44c96b97c3323e428b9e6d420422f24a4e
53 files changed
tree: 0bdb8de4408e53205807126df684051da7c31fa8
  1. include/
  2. libFLAC/
  3. Android.mk
  4. config.h
  5. MODULE_LICENSE_BSD_LIKE
  6. NOTICE