kho/abi: luo: make generated documentation more coherent

Patch series "kho: ABI headers and Documentation updates".

LUO started adding KHO ABI headers to include/linux/kho/abi, but the core
parts of KHO and memblock are still using the old way for descriptions on
their ABIs.

Let's consolidate all things KHO in include/linux/kho/abi.

And while on that, make some documentation updates to have more coherent
KHO docs.


This patch (of 6):

LUO ABI description starts with "This header defines" which is fine in the
header but reads weird in the generated html documentation.

Update it to make the generated documentation coherent.

Link: https://lkml.kernel.org/r/20260105165839.285270-1-rppt@kernel.org
Link: https://lkml.kernel.org/r/20260105165839.285270-2-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Pratyush Yadav <pratyush@kernel.org>
Cc: Alexander Graf <graf@amazon.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Jason Miu <jasonmiu@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>