* Harmonize systemd unit and helper-script prefixes to haos (#4725)
Rename the hassos-prefixed systemd units and their ExecStart helper
binaries to a consistent haos- prefix, and update all in-repo
references. Normalize the affected unit Description= strings as well.
Units renamed in this commit are not referred externally (except for
syslog identifiers used in Supervisor Host logs), so no other changes
should be needed.
* Rename hassos-config to haos-config with alias
Rename the hassos-config.service unit and its binary to the haos-
prefix. This unit is restarted by Supervisor in os/manager.py, so add
Alias= to avoid the need to try both variants there.
* Rename hassos-cli binary to haos-cli
* Change HassOS to HAOS in unit descriptions and comments
* Rename hassos->haos in Buildroot makefiles, scripts and configs
* Rename bootargs_hassos to bootargs_haos in U-Boot scripts
* Rename external Buildroot tree HASSOS to HAOS
Set external.desc name to HAOS and rename all BR2_EXTERNAL_HASSOS_PATH
references to BR2_EXTERNAL_HAOS_PATH accordingly.
* Rename hassos.conf service drop-ins to haos.conf
* Rename hassos.config kernel fragment to haos.config
* Rename hassos-blobs repo in package/bluetooth-rtl8723
The repo was renamed somewhere in the past and it now relies on an
internal GitHub redirect. Change the URL to match the new repo name.
