ascend: sharepool: support multi-group mode

ascend inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4EUVI


CVE: NA

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The share pool need to support multi-group mode for automotive platform,
it will enhance the system reliability and security.

The new multi-group mode could be enabled by boot command line. When
disabled, the share pool should only support single group mode by
default. When enabled, the task could be added to several groups
(at most 3k). At most 50k groups can be created in the whole system.

This patch also fixes the kabi problem for mm struct.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: Tang Yizhou <tangyizhou@huawei.com>
Reviewed-by: Weilong Chen <chenweilong@huawei.com>
Reviewed-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>