net: hns3: change the value of the SEPARATOR_VALUE macro in hclgevf_main.c

The SEPARATOR_VALUE macro is used as separator when getting
the register value, but the value of this macro is different
between pf and vf, it is a bit confusing for the user, so
synchronize the value of vf with pf.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>