[src/trunk]: src/sys/external/bsd/drm2/include Bunch more Linux header file s...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f5d7aa321d7a
branches:  trunk
changeset: 1027786:f5d7aa321d7a
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sun Dec 19 00:31:27 2021 +0000

description:
Bunch more Linux header file stubs.