Networking events may have been triggered before `wait_for_network` was
called. Resend the status events after the callbacks have been
registered.
Signed-off-by: Jordan Yates <jordan@embeint.com>
Add overlay and small adjustments for using the hl7800 modem.
Works out of the box with pinnacle_100_dvk and mg100.
Signed-off-by: Ryan Erickson <ryan.erickson@ezurio.com>
