[PATCH] drm/i915/gem: Convert SPDX headers to single-line format

[Andi Shyti]

Hi Mikolaj,

On Fri, Mar 28, 2025 at 09:08:53AM +0100, Mikolaj Wasiak wrote:
> Consider also changing the SPDX licence header in gem/selftests as
> currently we have there mix of oneliners and multiliners.

thanks for your suggestion. If you don't mind I would do it in a
separate patch, otherwise this one gets too big and annoying to
be reviewed.

When I started doing this, I didn't know myself that we had such
a mess with the SPDX license formatting.

Thanks,
Andi