net: dsa: felix: felix_init() can be static

No one is calling this function from outside felix_switch.c.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Tested-by: Michael Walle <michael@walle.cc>
diff --git a/drivers/net/mscc_eswitch/felix_switch.c b/drivers/net/mscc_eswitch/felix_switch.c
index f20e84e..7507388 100644
--- a/drivers/net/mscc_eswitch/felix_switch.c
+++ b/drivers/net/mscc_eswitch/felix_switch.c
@@ -233,7 +233,7 @@
 	}
 }
 
-void felix_init(struct udevice *dev)
+static void felix_init(struct udevice *dev)
 {
 	struct dsa_pdata *pdata = dev_get_uclass_plat(dev);
 	struct felix_priv *priv = dev_get_priv(dev);