This machine registration command makes it possible to check for the
specified list of machine tags rather than just doing a full comparison
of tags between the expected state and the current state.
This is beneficial for multiple reasons:
* It enables having more than one GPU in a host, and we let the machine
registration container unbind the unwanted GPU before Mesa CI even
executes anything
* It makes it possible to alter the boot process so as to use a kernel
with a different architecture than the default kernel of CI-Tron uses
* Adding or modifying tags which are unused by a job won't fail the
first job after the new machine registration container lands.
Signed-off-by: Martin Roukala (né Peres) <martin.roukala@mupuf.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33551>
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