Comment # 10 on bug 1213614 from Takashi Iwai

Hm, we can't simply pick up for the standard package, I'm afraid.
In the original github repo:
  https://github.com/linux-surface/aarch64-firmware/tree/main

"""
Licensing

We do not have an explicit re-distribution license for some of the firmware
files provided here, in particular the ones specific to the Microsoft Surface
Pro X. These rights lie by Microsoft and/or Qualcomm. However, many of these
files are signed in a way that make them usable only on the Surface Pro X. The
files here are provided exclusively for convenience (especially allowing easy
creation of distribution packages) as owners of the Surface Pro X can obtain
these themselves via the provided script.
"""

IIRC, Arm takes action for "Linux on Arm Laptop", and TP X13s is exactly the
primary target, so we can ping Arm people about upstreaming the GPU firmware.
I suppose a690 stuff is rather the business of Arm.

Meanwhile, a hackish downstream package to fetch the file at installation would
be doable, too.