net: hns3: remove a duplicate pf reset counting

When enter suspend mode the counter of pf reset will be increased
twice, since both hclge_prepare_general() and hclge_prepare_wait()
increase this counter. So remove the duplicate counting in
hclge_prepare_general().

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