net: hns3: some functions can be static.

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

Functions is used only in the declared file.
So we need to add a keyword static for them to Reduce coupling.
Those functions inclding as below:
hclge_dbg_get_m7_stats_info()
hclge_reset_done()
hclge_handle_imp_error()

Feature or Bugfix:Bugfix
Signed-off-by: Nliaoguojia <liaoguojia@huawei.com>
Reviewed-by: Nlinyunsheng <linyunsheng@huawei.com>
Reviewed-by: NYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c

@@ -1036,7 +1036,7 @@ static void hclge_dbg_dump_rst_info(struct hclge_dev *hdev)
 		 hdev->rst_stats.reset_cnt);
 }
 
-void hclge_dbg_get_m7_stats_info(struct hclge_dev *hdev)
+static void hclge_dbg_get_m7_stats_info(struct hclge_dev *hdev)
 {
 	struct hclge_desc *desc_src, *desc_tmp;
 	struct hclge_desc desc;

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c

@@ -3754,7 +3754,7 @@ static void hclge_reset_timer(struct timer_list *t)
 	hclge_reset_event(hdev->pdev, NULL);
 }
 
-bool hclge_reset_done(struct hnae3_handle *handle, bool done)
+static bool hclge_reset_done(struct hnae3_handle *handle, bool done)
 {
 	struct hclge_vport *vport = hclge_get_vport(handle);
 	struct hclge_dev *hdev = vport->back;
@@ -3765,7 +3765,7 @@ bool hclge_reset_done(struct hnae3_handle *handle, bool done)
 	return done;
 }
 
-void hclge_handle_imp_error(struct hnae3_handle *handle)
+static void hclge_handle_imp_error(struct hnae3_handle *handle)
 {
 	struct hclge_vport *vport = hclge_get_vport(handle);
 	struct hclge_dev *hdev = vport->back;