Add ASUS ROG Zenith II Extreme configuration

[GitHub pull_request - opened <github@xxxxxxxxxxxxxxxx>]

alsa-project/alsa-lib pull request #263 was opened from nabajour:

This points iec958_device to the correct PCM device.

complements this [ALSA kernel patch](https://bugzilla.kernel.org/show_bug.cgi?id=211005).

Request URL   : https://github.com/alsa-project/alsa-lib/pull/263
Patch URL     : https://github.com/alsa-project/alsa-lib/pull/263.patch
Repository URL: https://github.com/alsa-project/alsa-lib