[XAP] reroute `CONSOLE_ENABLE=yes` to XAP broadcasts when enabled

XAP Task Info

Original Issue Original spec document Current XAP Definitions Current XAP Generated Docs Placeholder PR

Description

Any work in this area needs to be discussed with QMK Collaborators first.

XAP is a multiplexed protocol, and supports different "streams" of data to be sent over the wire.

The protocol specification defines logging broadcasts -- current usage of CONSOLE_ENABLE=yes should be rerouted to use logging broadcasts instead, so as to save the use of an extra USB endpoint.