UCM fails as CardDriver may not be defined

[GitHub issues - opened]

alsa-project/alsa-ucm-conf issue #69 was opened from coolstar:

UCM doesn't load as CardDriver isn't set on some platforms

Changing https://github.com/alsa-project/alsa-ucm-conf/blob/master/ucm2/ucm.conf#L69 to `Directory "${CardLongName}"` resolves the issue

```
I: [pulseaudio] source.c: Created source 1 "alsa_input.platform-sound.analog-stereo" with sample spec s16le 2ch 44100Hz and channel map front-left,front-right
I: [pulseaudio] source.c:     alsa.resolution_bits = "16"
I: [pulseaudio] source.c:     device.api = "alsa"
I: [pulseaudio] source.c:     device.class = "sound"
I: [pulseaudio] source.c:     alsa.class = "generic"
I: [pulseaudio] source.c:     alsa.subclass = "generic-mix"
I: [pulseaudio] source.c:     alsa.name = ""
I: [pulseaudio] source.c:     alsa.id = "ADMAIF1 CIF ADMAIF1-0"
I: [pulseaudio] source.c:     alsa.subdevice = "0"
I: [pulseaudio] source.c:     alsa.subdevice_name = "subdevice #0"
I: [pulseaudio] source.c:     alsa.device = "0"
I: [pulseaudio] source.c:     alsa.card = "1"
I: [pulseaudio] source.c:     alsa.card_name = "tegra-snd-t210ref-mobile-rt565x"
I: [pulseaudio] source.c:     alsa.long_card_name = "tegra-snd-t210ref-mobile-rt565x"
I: [pulseaudio] source.c:     device.bus_path = "platform-sound"
I: [pulseaudio] source.c:     sysfs.path = "/devices/sound/sound/card1"
I: [pulseaudio] source.c:     device.form_factor = "internal"
I: [pulseaudio] source.c:     device.string = "front:1"
I: [pulseaudio] source.c:     device.buffering.buffer_size = "32768"
I: [pulseaudio] source.c:     device.buffering.fragment_size = "16384"
I: [pulseaudio] source.c:     device.access_mode = "mmap+timer"
I: [pulseaudio] source.c:     device.profile.name = "analog-stereo"
I: [pulseaudio] source.c:     device.profile.description = "Analog Stereo"
I: [pulseaudio] source.c:     device.description = "Built-in Audio Analog Stereo"
I: [pulseaudio] source.c:     module-udev-detect.discovered = "1"
I: [pulseaudio] source.c:     device.icon_name = "audio-card"
```

Issue URL     : https://github.com/alsa-project/alsa-ucm-conf/issues/69
Repository URL: https://github.com/alsa-project/alsa-ucm-conf