timer: fix wrong comment to refer to 'SNDRV_TIMER_PSFLG_*'
timer: fix wrong comment to refer to 'SNDRV_TIMER_PSFLG_*'

ALSA timer core has a comment referring to 'SNDRV_MIXER_PSFLG_*' in
a definition of 'struct snd_timer_params' of UAPI header. I can see
this in initial state of ALSA timer core, at least in
'alsa-driver-0.4.0.tar.gz'.

This commit fixes the comment.

Signed-off-by: Takashi Sakamoto <d5ec7d0cd8074757a1f5eb708bc105c3065a65ea@sakamocchi.jp>
Signed-off-by: Takashi Iwai <4596b3305151c7ee743192a95d394341e3d3b644@suse.de>

tiwai/alsa-lib,alsa-project/alsa-lib,tiwai/alsa-lib,tiwai/alsa-lib,takaswie/alsa-lib,takaswie/alsa-lib,tiwai/alsa-lib,alsa-project/alsa-lib,takaswie/alsa-lib,takaswie/alsa-lib,alsa-project/alsa-lib,alsa-project/alsa-lib,takaswie/alsa-lib