!307 arch: mach: add support for 16dv300 series soc.

Merge Pull Request from: @mist_tao 
 
As a new-generation smart HD IP camera SOC, Hi3516DV300 
integrates the new-generation ISP, H.265 video compression encoder, 
and high-performance NNIE engine. Hi3516DV300 leads the industry 
in terms of low bit rate, high image quality, intelligent processing and analysis, 
and low power consumption. The soc can be used in the development of face recognition terminals, 
face payment terminals, and security terminals. 

This patchset mainly provide common capabilities for 16dv300 series soc.
1、Add support for 16dv300 machine， including clk driver，defconfig, etc.
2、Add MEIG vendor id to usb serial driver options.
3、Add I2C_M_STOP flag support for hix5hd2 driver.
 
 
Link:https://gitee.com/openeuler/kernel/pulls/307

 
Reviewed-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>