be2net: fix sparse warning

this patch fixes following sparse warning:

be_cmds.c:2750:5: warning: symbol 'be_cmd_set_qos' was not declared. Should it be static?

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 4bd425e..b5aa772 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -2747,7 +2747,7 @@
 	return status;
 }
 
-int be_cmd_set_qos(struct be_adapter *adapter, u32 bps, u32 domain)
+static int be_cmd_set_qos(struct be_adapter *adapter, u32 bps, u32 domain)
 {
 	struct be_mcc_wrb *wrb;
 	struct be_cmd_req_set_qos *req;