net/hns3: support maximum 256 flow director counter

net/hns3: support maximum 256 flow director counter

The FDIR counter was used to count the number of FDIR hit, the maximum
number of the counter is 128 based on kunpeng 920, and it was 256 based
on kunpeng 930.

The firmware is responsible to allocate counters for different PF
devices, so the available counter number of one PF may be bigger than
128.

Currently, there are two places using the counter in driver:
1. Configure the counter. Driver uses the command whose opcode is
   HNS3_OPC_FD_AD_OP, now we extend one bit to hold the high bit of
   counter-id in the command format.
2. Query the statistic information of the counter. Driver uses the
   command whose opcode is HNS3_OPC_FD_COUNTER_OP, now the command
   already support 16-bit counter-id.

Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>