alsa-lib broken ucm contents

[f3flight]

HI all,

Working on Chromebook R13, installed Archlinux ARM and running fine. I found a problem with alsa-lib - alsaucm CLI is unuseable due to missing config in /usr/share/alsa/ucm/bytcr

[user@alarm ~]$ alsaucm
ALSA lib utils.c:67:(uc_mgr_config_load) could not open configuration file /usr/share/alsa/ucm/bytcr/bytcr.conf
ALSA lib parser.c:1427:(load_master_config) error: could not parse configuration for card bytcr
alsaucm: unable to obtain card list: No such file or directory

Seems like at least these configs are missing:
/usr/share/alsa/ucm/bytcr/bytcr.conf
/usr/share/alsa/ucm/nau8824/nau8824.conf
/usr/share/alsa/ucm/rt5640/rt5640.conf
/usr/share/alsa/ucm/rt5651/rt5651.conf

I worked around this by "touch"ing these files.