This makes the Red+Blue Button cause the boot loader to wipe start4.elf,
which is essential for the boot loader to boot from eMMC. With the file
missing, the Raspberry Pi firmware will continue its boot flow and boot
from USB host next. This allows to run the Home Assistant OS Installer
from a USB flash drive again.
* Enable additional LED triggers
* Improve Yellow device tree
Fix soundcard name and use BTN_1 as key code.
* Add input-event-daemon configuration
Add minimal input-event-daemon configuration to avoid the default
configuration taking effect. This minimal configuration triggers
the USB configuration import on button press.
* Fix enable USB host mode kernel patch
Update to a new patch which applies the device tree change such that the
USB controller actually gets enabled.
* Update Home Assistant Yellow board config
Update config to match changes which have been made to other baords as
well.
* Rename Home Assistant Amber to Yellow
Rename the board from "amber" to "yellow" as Home Assistant Yellow is
the official name now.
* Add Home Assistant Yellow to the build matrix
