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XE doesn't load on DG2 when faking engine_mask parse from hwconfig blob

I had revert the below patch in order to get the driver to load on DG2:

commit 51079ba84b8c65b1a49ed3c5e866a8a7f14a5cbe
Author: Matthew Brost <matthew.brost@intel.com>
Date:   Mon Dec 5 15:52:36 2022 -0800

    drm/xe: Fake pulling gt->info.engine_mask from hwconfig blob

    The blob doesn't fully support this yet, so fake for now to ensure our
    driver load order is correct.

    Once the blob supports pulling gt->info.engine_mask from the blob, this
    patch can be removed.

    Signed-off-by: Matthew Brost <matthew.brost@intel.com>

That means the driver load order isn't 100% correct if we want to parse hwconfig blob for platform information.