all: Enable WWAN and associated MHI bus pieces
The Modem Host Interface (MHI) is used for most newer 4G/LTE and 5G modems. It's basically virtual ethernet over a PCI <-> PCIE-endpoint with a control over a TTY interface. These modems are already in the latest Lenovo laptops and likely others, as well as Edge gateways.
Signed-off-by: Peter Robinson pbrobinson@redhat.com