rpi: Complete table of models with new revision code scheme

rpi: Complete table of models with new revision code scheme

In the model table for the new revision code encoding documented in
https://www.raspberrypi.org/documentation/hardware/raspberrypi/revision-codes/README.md
add the entries for old models with the new scheme and add CM3 which
only appears in the new scheme.

A device tree for CM3 is not currently upstreamed in linux.  When that
happens the name will likely have to be adjusted in the table.

Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>