pcm: Fix channel map query when there are lots of maps
pcm: Fix channel map query when there are lots of maps

On most HDA Intel HDMI devices, the channel map list is approx. 500 ints
in size, making the 256-sized buffer used by
snd_pcm_query_chmaps_from_hw() too small and causing the query to fail
(NULL result to caller, ENOMEM).

Bump the buffer size to 2048 ints.

Signed-off-by: Anssi Hannula <a67f875f3f4d9a809275c1d14e68c85c921fe2e8@iki.fi>
Signed-off-by: Takashi Iwai <4596b3305151c7ee743192a95d394341e3d3b644@suse.de>

zedongchen/alsa-lib,mengdonglin/alsa-lib,takaswie/alsa-lib,takaswie/alsa-lib,mengdonglin/alsa-lib,takaswie/alsa-lib,zedongchen/alsa-lib,takaswie/alsa-lib,lgirdwood/alsa-lib,Distrotech/alsa-lib,Distrotech/alsa-lib,alsa-project/alsa-lib,lgirdwood/alsa-lib,lgirdwood/alsa-lib,alsa-project/alsa-lib,Distrotech/alsa-lib,zedongchen/alsa-lib,tiwai/alsa-lib,Distrotech/alsa-lib,zedongchen/alsa-lib,tiwai/alsa-lib,lgirdwood/alsa-lib,alsa-project/alsa-lib,takaswie/alsa-lib,mengdonglin/alsa-lib,mengdonglin/alsa-lib,lgirdwood/alsa-lib,Distrotech/alsa-lib,alsa-project/alsa-lib,zedongchen/alsa-lib,mengdonglin/alsa-lib,tiwai/alsa-lib,tiwai/alsa-lib