/usr/share/alsa/ucm/ is in libasound2-data 1.0.27.2-3ubuntu7.
This file is owned by root:root, with mode 0o755.
..
/usr/share/alsa/ucm/DAISY-I2S/
/usr/share/alsa/ucm/DAISY-I2S/DAISY-I2S.conf
/usr/share/alsa/ucm/DAISY-I2S/HiFi.conf
/usr/share/alsa/ucm/Manta-I2S/
/usr/share/alsa/ucm/Manta-I2S/HiFi
/usr/share/alsa/ucm/Manta-I2S/Manta-I2S.conf
/usr/share/alsa/ucm/Manta-SPDIF/
/usr/share/alsa/ucm/Manta-SPDIF/Dummy
/usr/share/alsa/ucm/Manta-SPDIF/Manta-SPDIF.conf
/usr/share/alsa/ucm/PandaBoard/
/usr/share/alsa/ucm/PandaBoard/FMAnalog
/usr/share/alsa/ucm/PandaBoard/PandaBoard.conf
/usr/share/alsa/ucm/PandaBoard/hifi
/usr/share/alsa/ucm/PandaBoard/hifiLP
/usr/share/alsa/ucm/PandaBoard/record
/usr/share/alsa/ucm/PandaBoard/voice
/usr/share/alsa/ucm/PandaBoard/voiceCall
/usr/share/alsa/ucm/PandaBoardES/
/usr/share/alsa/ucm/PandaBoardES/FMAnalog
/usr/share/alsa/ucm/PandaBoardES/PandaBoardES.conf
/usr/share/alsa/ucm/PandaBoardES/hifi
/usr/share/alsa/ucm/PandaBoardES/hifiLP
/usr/share/alsa/ucm/PandaBoardES/record
/usr/share/alsa/ucm/PandaBoardES/voice
/usr/share/alsa/ucm/PandaBoardES/voiceCall
/usr/share/alsa/ucm/SDP4430/
/usr/share/alsa/ucm/SDP4430/FMAnalog
/usr/share/alsa/ucm/SDP4430/SDP4430.conf
/usr/share/alsa/ucm/SDP4430/hifi
/usr/share/alsa/ucm/SDP4430/hifiLP
/usr/share/alsa/ucm/SDP4430/record
/usr/share/alsa/ucm/SDP4430/voice
/usr/share/alsa/ucm/SDP4430/voiceCall
/usr/share/alsa/ucm/Tuna/
/usr/share/alsa/ucm/Tuna/HiFi
/usr/share/alsa/ucm/Tuna/Tuna.conf
/usr/share/alsa/ucm/Tuna/VoiceCall
/usr/share/alsa/ucm/apq8064-tabla-snd-card/
/usr/share/alsa/ucm/apq8064-tabla-snd-card/HiFi
/usr/share/alsa/ucm/apq8064-tabla-snd-card/VoiceCall
/usr/share/alsa/ucm/apq8064-tabla-snd-card/apq8064-tabla-snd-card.conf
/usr/share/alsa/ucm/tegra-rt5640/
/usr/share/alsa/ucm/tegra-rt5640/HiFi
/usr/share/alsa/ucm/tegra-rt5640/tegra-rt5640.conf
/usr/share/alsa/ucm/tegraalc5632/
/usr/share/alsa/ucm/tegraalc5632/tegraalc5632.conf