soc: hbmcache: Add support for online and offline the hbm cache

hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I6I7DH


CVE: NA

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Add a driver for hbm cache, which support for power on/off the
hbm cache device. Hbm can be used as a cache, for which a normal
memory access can take advantage of the high band width of hbm.

Signed-off-by: Zhang Zekun <zhangzekun11@huawei.com>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>