hwrng: add hisilicon GM auth trng driver

driver inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I4FHUR



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Provide kernel-side GM authentication support for the True Random Number
Generator hardware found on HiSilicon KP920 SoC

Signed-off-by: Yu'an Wang <wangyuan46@huawei.com>
Reviewed-by: Weili Qian <qianweili@huawei.com>
Reviewed-by: Longfang Liu <liulongfang@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>