!3126 [OLK-6.6] Driver for Zhaoxin HW Random Number Generator

Merge Pull Request from: @leoliu-oc 
 
This driver provides kernel-side support for the Random Number Generator hardware found on Zhaoxin based motherboards.

### Issue
https://gitee.com/openeuler/kernel/issues/I8WXB4

### Default config Change
CONFIG_HW_RANDOM_ZHAOXIN=m

### Test
Pass: The module is installed and functions operate correctly 
 
Link:https://gitee.com/openeuler/kernel/pulls/3126

 

Reviewed-by: Jason Zeng <jason.zeng@intel.com>
Reviewed-by: Liu Chao <liuchao173@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>