tinycompress: tinycompress fixes

tinycompress: Add support to send codec specific data
change-Id: If6f2a0d75140614c283ae444fc51b9b505d200f0

tinycompress: include kernel headers
Change-Id: I3e6de1276b4b16599eff2b1cbce7473e2d7fc216

tinycompress: Set additional metadata for flac stream
change-Id: I6b67ab3853637dff4fc6aee00137be2888ca6c86

tinycompress: Add get_metadata() and set_metadata() API support
Change-Id: Id81bd8585ed389efc3d0c830cb6cc1678d4d4e56

Change-Id: I9c3f39e22d7246fbb7cf665a4b5ce71a74e07495