mpam: enable rdt_mon_capable for mbw monitor

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


CVE: NA

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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: Xingang Wang <wangxingang5@huawei.com>
Reviewed-by: Shaobo Wang <bobo.shaobowang@huawei.com>
Reviewed-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>