mpam: enable rdt_mon_capable for mbw monitor

ascend inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I49RB2
CVE: NA

-------------------------------------------------

The rdt_mon_capable should be enabled when the msmon_mbwu
feature is supported, so that the mpam monitor function
can be effective.
Signed-off-by: NXingang Wang <wangxingang5@huawei.com>
Reviewed-by: NShaobo Wang <bobo.shaobowang@huawei.com>
Reviewed-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

arch/arm64/kernel/mpam/mpam_setup.c

@@ -335,6 +335,7 @@ static void mpam_resctrl_pick_event_mbm_local(void)
 
 	if (mpam_has_feature(mpam_feat_msmon_mbwu, res->class->features)) {
 		res->resctrl_res.mon_capable = true;
+		rdt_mon_capable = true;
 		mpam_resctrl_events[QOS_L3_MBM_LOCAL_EVENT_ID] = *res;
 	}
 }