libaaudio: change aaudio_audio_format_t to aaudio_format_t

Test: no functional change, it compiles
Change-Id: I3bdb1472a09ef2a01cbca0b1059257b72a980e1a
Signed-off-by: Phil Burk <philburk@google.com>
(cherry picked from commit 50a3ad82bcca719eebe71bece07cb4745f5e2c6d)
1 file changed