net/hns3: query basic info for VF

net/hns3: query basic info for VF

There are some features of VF depend on PF, so it's necessary for VF
to know whether current PF supports. Therefore, the final capability
set of VF will be composed of the capability set of hardware and the
capability set of PF.

For compatibility reasons, the mailbox HNS3_MBX_GET_TCINFO has been
modified to obatin more basic information about the current PF, including
the communication interface version and current PF capabilities set.

Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>