video/hdmi: Relicense header under MIT license
video/hdmi: Relicense header under MIT license

OpenBSD wants to reuse this file but needs the license to be more
permissive.

Acked-by: Alban Bedel <825cb1d71292b66c34fe6b2f34d0838d6f1a9969@avionic-design.de>
Acked-by: Daniel Vetter <c1b6782c4af8f0673da8923a0702a1832e5940f4@intel.com>
Acked-by: Alex Deucher <08dc22c6156113f2deff178e35e3ed9b24d6af9e@amd.com>
Acked-by: Christian König <c7ea837d7a46effe4232b086213468b8b31643bf@amd.com>
Signed-off-by: Thierry Reding <3055038c414aef68bf32c33b8118623e7554e0f2@nvidia.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs