mm/damon/core: commit damos->migrate_dests

mm/damon/core: commit damos->migrate_dests

When committing new scheme parameters from the sysfs, copy the
migrate_dests struct of the source schemes into the destination schemes.

Link: https://lkml.kernel.org/r/20250709005952.17776-8-bijan311@gmail.com
Signed-off-by: Bijan Tabatabai <bijantabatab@micron.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ravi Shankar Jonnalagadda <ravis.opensrc@micron.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>