New comment by st3r4g on void-packages repository

https://github.com/void-linux/void-packages/issues/20252#issuecomment-653513185

Comment:
Until this is fixed properly, create as root the file `/etc/xbps.d/ignore.conf` with contents:
```
ignorepkg=libglvnd
```
This should prevent `libglvnd` to try to replace `nvidia340-libs`