drivers/net/qlge: fix sparse warnings: make symbols static

Fix this sparse warnings:

  drivers/net/qlge/qlge_ethtool.c💯6: warning: symbol 'ql_update_stats' was not declared. Should it be static?
  drivers/net/qlge/qlge_mpi.c:22:5: warning: symbol 'ql_get_mb_sts' was not declared. Should it be static?

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/qlge/qlge_ethtool.c

@@ -97,7 +97,7 @@ exit:
 	return status;
 }
 
-void ql_update_stats(struct ql_adapter *qdev)
+static void ql_update_stats(struct ql_adapter *qdev)
 {
 	u32 i;
 	u64 data;

drivers/net/qlge/qlge_mpi.c

@@ -19,7 +19,7 @@ exit:
 	return status;
 }
 
-int ql_get_mb_sts(struct ql_adapter *qdev, struct mbox_params *mbcp)
+static int ql_get_mb_sts(struct ql_adapter *qdev, struct mbox_params *mbcp)
 {
 	int i, status;