FLAC: resize raw decoder's buffer according to flac max buffer size

Problem:
Some flac can not be played because insufficient raw decoder's buffer
size. Raw component's input and output buffer size are both 64K.
But FLACExtractor's output(decoded pcm) buffer size may be greater
than 64K.

Solution:
FLACExtractor pass the max buffer size to ACodec and resize raw
component's input and output buffer size if possible.

Bug: 122969286
Test: play flac audio which buffer size is greater than 64K normally
Change-Id: Ic046d27926bdec35e3944aec2bd6718f197d42c1