openeuler_defconfig: Build HISI PMU drivers as modules.

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4A1WQ


CVE: NA

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

Build HISI PMU drivers as modules.

Signed-off-by: Qi Liu <liuqi115@huawei.com>
Reviewed-by: Yang Jihong <yangjihong1@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>