Merge pull request #25529 from Songweibin/wip-fix-rbd-migration

librbd: disallow trash restoring when image being migrated

Reviewed-by: Mykola Golub <mgolub@suse.com>
Reviewed-by: Jason Dillaman <dillaman@redhat.com>

diff --cc src/librbd/api/Migration.cc
Simple merge

diff --cc src/librbd/api/Trash.cc
Simple merge

diff --cc src/librbd/librbd.cc
Simple merge

diff --cc src/test/librbd/test_librbd.cc
Simple merge