We now have two plugins getting the ESP values, and we only allow hardcoding
the ESP in uefi_capsule.conf.
Make all this a lot simpler by moving the ESP+BDP code to `FuContext`, which
also means we can handle the override (via the config file) in the engine,
and the override (in the command line tools) using the same mechanism.
Also, automate the migration of the `OverrideESPMountPoint` -> `EspLocation`
when loading the engine.
Fixes https://github.com/fwupd/fwupd/issues/5042
These are currently used interchangeably since there was indecisiveness
which to use as the feature was being developed.
As outward facing it will be named with "settings", change all uses
in the code to match this.
There are now multiple plugins using drm_dp_aux_dev interface which
may potentially be combined with an amdgpu. Prevent exercising this
interface with any plugin using DP aux unless a new enough kernel is
installed.
There is a lot of code in fwupd that just assigns a shared object type to
a FuPlugin, and then for each device on that plugin assigns that same shared
object to each FuDevice.
Rather than proxy several kinds of information stores over two different levels
of abstraction create a 'context' which contains the shared *system* state
between the daemon, the plugins and the daemon.
This will allow us to hold other per-machine state in the future, for instance
the system battery level or AC state.
