alsa: Update to version 1.2.5.1

alsa: Update to version 1.2.5.1

- Not really sure if a sound support capability is really appropriate for a firewall. I
   wouldn't have it. However if it stays as an add-on then it should be up to date.
- Update alsa-lib from 1.0.27.1 (2013) to 1.2.5.1 (2021)
- Update alsa-utils from 1.0.27.1 (2013) to 1.2.5.1 (2021)
- Update alsa-firmware from 1.0.27 (2013) to 1.2.4 (2020)
- Update rootfile
- Changelog is too large to include here. Changes back to 2019-11-20 can be found at
   https://www.alsa-project.org/wiki/Main_Page
   Earlier changes have to be found from the git commits at
   https://github.com/alsa-project/alsa-lib and
   https://github.com/alsa-project/alsa-utils
   There is no changelog or git commits that I have been able to find for alsa-firmware

Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>