u-blox TOBY-L2 broken in v0.8.0

[fhunleth]

I've been told that wwan0 doesn't show up on the TOBY-L2, so it never gets configured. This is even though the instructions say to use the wwan kernel module. Since I don't have a TOBY-L2, I can't debug this, but I'd appreciate it if anyone could debug it.

[aadavids]

I don't have a TOBY-L2, but we use the ublox SARA-U2, and I've been working on getting it working with vintage net.

If it helps I can confirm that wwan0 shows up on the SARA-U2 once I configured the USB profile with AT+UUSBCONF=2 (similar to the instructions here: https://github.com/nerves-networking/vintage_net_mobile/blob/main/lib/vintage_net_mobile/modem/ublox_TOBY_L2.ex#L35).