mm/damon/paddr: support ops_filters

DAMON keeps all DAMOS filters in damos->filters.  Upcoming changes will
make it to use damos->ops_filters for all operations layer handled DAMOS
filters, though.  DAMON physical address space operations set
implementation (paddr) is not ready for the changes, since it handles only
damos->filters.  To avoid any breakage during the upcoming changes, make
paddr to handle both lists.  After the change is made, ->filters support
on paddr can be safely removed.

Link: https://lkml.kernel.org/r/20250304211913.53574-3-sj@kernel.org


Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>