Instead of requiring udev tags for each Telit modem model, just use the VID based filtering (or vendor-string based for RS232 modems), which should already be enough.
Discussed here: https://lists.freedesktop.org/archives/modemmanager-devel/2017-March/004254.html
Pushed to git master as 4c164287eba1e0655c4090e4c72b2f0f1bf4a2ac.
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