When flashing bigger firmware packages we would still get an timeout
after 10 minutes. Increasing the delay between read/write operations
from 100ms to 250ms solves that.
The Quectel EG25-G modem must use a blocksize of 16384 bytes in fastboot mode.
Using a different blocksize makes the fastboot bootloader crash,
resulting in a failed update.
The best way of not getting something wrong is to not require it in the first
place...
All plugins now use DeviceInstanceId-style quirk matches and we can just drop
the prefix in all files. We were treating HwId=, Guid= and DeviceInstanceId= in
exactly the same way -- they're just converted to GUIDs when building the silo!
