treewide: Rename PHY_INTERFACE_MODE_NONE to PHY_INTERFACE_MODE_NA

Rename constant PHY_INTERFACE_MODE_NONE to PHY_INTERFACE_MODE_NA to make
it compatible with Linux' naming.

Signed-off-by: Marek BehĂșn <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
diff --git a/drivers/net/fm/t1040.c b/drivers/net/fm/t1040.c
index af4f5c5..192f1c6 100644
--- a/drivers/net/fm/t1040.c
+++ b/drivers/net/fm/t1040.c
@@ -56,8 +56,8 @@
 			return PHY_INTERFACE_MODE_SGMII;
 		break;
 	default:
-		return PHY_INTERFACE_MODE_NONE;
+		return PHY_INTERFACE_MODE_NA;
 	}
 
-	return PHY_INTERFACE_MODE_NONE;
+	return PHY_INTERFACE_MODE_NA;
 }