MAINTAINERS: add missing shrinker files

The mm/list_lru.[ch] files implement a shrinker-specific data structure so
seem most suited to the SHRINKER section.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Lorenzo Stoakes <[email protected]>
Acked-by: Qi Zheng <[email protected]>
Cc: Dave Chinner <[email protected]>
Cc: Muchun Song <[email protected]>
Cc: Roman Gushchin <[email protected]>
Cc: Alistair Popple <[email protected]>
Cc: Christoph Lameter (Ampere) <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Dennis Zhou <[email protected]>
Cc: Jann Horn <[email protected]>
Cc: Liam Howlett <[email protected]>
Cc: Nico Pache <[email protected]>
Cc: Oscar Salvador <[email protected]>
Cc: Tejun Heo <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Cc: Zi Yan <[email protected]>
Cc: Dev Jain <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Mike Rapoport <[email protected]>
Cc: Pedro Falcato <[email protected]>
Cc: Suren Baghdasaryan <[email protected]>
Cc: Shakeel Butt <[email protected]>
Cc: Joshua Hahn <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

Author: lorenzo-stoakes

MAINTAINERS

@@ -22635,7 +22635,9 @@ R:	Muchun Song <[email protected]>
 L:	[email protected]
 S:	Maintained
 F:	Documentation/admin-guide/mm/shrinker_debugfs.rst
+F:	include/linux/list_lru.h
 F:	include/linux/shrinker.h
+F:	mm/list_lru.c
 F:	mm/shrinker.c
 F:	mm/shrinker_debug.c