MAINTAINERS: Add Chen Ridong as cpuset reviewer

Add Chen Ridong as a reviewer for the cpuset cgroup subsystem.

Signed-off-by: Waiman Long <longman@redhat.com>
Acked-by: Chen Ridong <chenridong@huaweicloud.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

Author: Waiman-Long

MAINTAINERS

@@ -6402,6 +6402,7 @@ F:	include/linux/blk-cgroup.h
 
 CONTROL GROUP - CPUSET
 M:	Waiman Long <longman@redhat.com>
+R:	Chen Ridong <chenridong@huaweicloud.com>
 L:	cgroups@vger.kernel.org
 S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git