mm/damon/lru_sort: consider age for quota prioritization

DAMON_LRU_SORT is doing under-quota access pattern based regions
prioritization using only access frequency. Age of regions is another
useful information for distinguishing hot and cold regions. Use it for
prioritization, too.

Link: https://lkml.kernel.org/r/20260113152717.70459-6-sj@kernel.org
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 <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>