BACKPORT: memcg: add mem_cgroup_uncharge_folios()

Almost identical to mem_cgroup_uncharge_list(), except it takes a
folio_batch instead of a list_head.

Link: https://lkml.kernel.org/r/20240227174254.710559-6-willy@infradead.org


Change-Id: I7be42f29e5c352ac15bf757fb35e0621d21c94f7
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
(cherry picked from commit 4882c809)
[ Fix trivial conflicts in include/linux/memcontrol.h - Kalesh Singh]
Bug: 419599659
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>