ignore compile error in snd_pcm_client.c:192:19: warning: operation on 'audio->out_tail' may be undefined [-Wsequence-point]

Signed-off-by: Randolf Kastenmaier <randolf.kastenmaier@gmail.com>
Change-Id: I7a56a8a0a3fb2b7f0a856e66e12b5a2efae52c7e