Parameters from
https://wiki.qt.io/Qt_Coding_Style#Artistic_Style
except line length to 120

Move setDeviceMode to a int instead of custom type. Also make the
extended interface with edit mode specification available.

[systemd] Prevent ssu startup when system is shutting down. Contributes to JB#24120

We need to map the dbus service file to systemd service file in order to
be able to prevent dbus activation of the service when system is for
example shutting down.
Signed-off-by: Marko Saukko <marko.saukko@jolla.com>

New package ssu-network-proxy-plugin provides ssu-network-proxy,
which is required by ssu.
Signed-off-by: Juha Kallioinen <juha.kallioinen@jolla.com>

Revert "[ssu] Expose new dbus API for updating the store credentials."

This reverts commit 38a30520.