MAINTAINERS: Add entry for DMEM cgroup controller

The cgroups controller is currently maintained through the
drm-misc tree, so lets add Maxime Ripard, Natalie Vock
and me as specific maintainers for dmem.

We keep the cgroup mailing list CC'd on all cgroup specific patches.

Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Natalie Vock <natalie.vock@gmx.de>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Koutný <mkoutny@suse.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250220140757.16823-1-dev@lankhorst.se
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>

Author: Maarten Lankhorst

.mailmap

@@ -502,6 +502,7 @@ Nadav Amit <nadav.amit@gmail.com> <namit@cs.technion.ac.il>
 Nadia Yvette Chambers <nyc@holomorphy.com> William Lee Irwin III <wli@holomorphy.com>
 Naoya Horiguchi <nao.horiguchi@gmail.com> <n-horiguchi@ah.jp.nec.com>
 Naoya Horiguchi <nao.horiguchi@gmail.com> <naoya.horiguchi@nec.com>
+Natalie Vock <natalie.vock@gmx.de> <friedrich.vock@gmx.de>
 Nathan Chancellor <nathan@kernel.org> <natechancellor@gmail.com>
 Naveen N Rao <naveen@kernel.org> <naveen.n.rao@linux.ibm.com>
 Naveen N Rao <naveen@kernel.org> <naveen.n.rao@linux.vnet.ibm.com>

MAINTAINERS

@@ -5878,6 +5878,17 @@ F:	tools/testing/selftests/cgroup/test_cpuset.c
 F:	tools/testing/selftests/cgroup/test_cpuset_prs.sh
 F:	tools/testing/selftests/cgroup/test_cpuset_v1_base.sh
 
+CONTROL GROUP - DEVICE MEMORY CONTROLLER (DMEM)
+M:	Maarten Lankhorst <dev@lankhorst.se>
+M:	Maxime Ripard <mripard@kernel.org>
+M:	Natalie Vock <natalie.vock@gmx.de>
+L:	cgroups@vger.kernel.org
+L:	dri-devel@lists.freedesktop.org
+S:	Maintained
+T:	git https://gitlab.freedesktop.org/drm/misc/kernel.git
+F:	include/linux/cgroup_dmem.h
+F:	kernel/cgroup/dmem.c
+
 CONTROL GROUP - MEMORY RESOURCE CONTROLLER (MEMCG)
 M:	Johannes Weiner <hannes@cmpxchg.org>
 M:	Michal Hocko <mhocko@kernel.org>