MFC r349543

Fix VOP_PUTPAGES(9) in regards to the use of VM_PAGER_CLUSTER_OK

Submitted by: Ka Ho Ng <khng300 at gmail.com>
Reviewed by: mckusick
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20695