USB-Audio: Dell-WD15-Dock: add jack controls

[GitHub pull_request - opened]

alsa-project/alsa-ucm-conf pull request #185 was opened from jscissr:

I recently added support for these to Linux, see
https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?id=4b8ea38fabab45ad911a32a336416062553dfe9c

Request URL   : https://github.com/alsa-project/alsa-ucm-conf/pull/185
Patch URL     : https://github.com/alsa-project/alsa-ucm-conf/pull/185.patch
Repository URL: https://github.com/alsa-project/alsa-ucm-conf