Docs/mm/damon/maintainer-profile: add AI review usage guideline

Docs/mm/damon/maintainer-profile: add AI review usage guideline

DAMON is opted-in for DAMON patches scanning [1] and email delivery [2].
Clarify how that could be used on DAMON maintainer profile.

Link: https://lore.kernel.org/20260412211932.89038-1-sj@kernel.org
Link: https://github.com/sashiko-dev/sashiko/commit/ad9f4a98f958
Link: https://github.com/sashiko-dev/sashiko/commit/b554c7b6e733
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>