MAINTAINERS: add mm memory policy section

As part of the ongoing efforts to sub-divide memory management
maintainership and reviewership, establish a section for memory policy and
migration and add appropriate maintainers and reviewers.

[[email protected]: add Ying as reviewer]
  Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Lorenzo Stoakes <[email protected]>
Reviewed-by: Rakie Kim <[email protected]>
Acked-by: Matthew Brost <[email protected]>
Reviewed-by: Joshua Hahn <[email protected]>
Acked-by: David Hildenbrand <[email protected]>
Acked-by: Zi Yan <[email protected]>
Acked-by: Huang Ying <[email protected]>
Acked-by: Byungchul Park <[email protected]>
Cc: Alistair Popple <[email protected]>
Cc: David Hildenbrand <[email protected]>
Cc: Gregory Price <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

Author: lorenzo-stoakes

MAINTAINERS

@@ -15577,6 +15577,26 @@ F:	include/linux/ksm.h
 F:	include/trace/events/ksm.h
 F:	mm/ksm.c
 
+MEMORY MANAGEMENT - MEMORY POLICY AND MIGRATION
+M:	Andrew Morton <[email protected]>
+M:	David Hildenbrand <[email protected]>
+R:	Zi Yan <[email protected]>
+R:	Matthew Brost <[email protected]>
+R:	Joshua Hahn <[email protected]>
+R:	Rakie Kim <[email protected]>
+R:	Byungchul Park <[email protected]>
+R:	Gregory Price <[email protected]>
+R:	Ying Huang <[email protected]>
+L:	[email protected]
+S:	Maintained
+W:	http://www.linux-mm.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
+F:	include/linux/mempolicy.h
+F:	include/linux/migrate.h
+F:	mm/mempolicy.c
+F:	mm/migrate.c
+F:	mm/migrate_device.c
+
 MEMORY MANAGEMENT - NUMA MEMBLOCKS AND NUMA EMULATION
 M:	Andrew Morton <[email protected]>
 M:	Mike Rapoport <[email protected]>