net: hns: fix some code style issue about space

Spaces at the start of a line will cause checkpatch warning.
This patch replaces the spaces by tab at the start of a line.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>