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/include/dm/ofnode.h b/include/dm/ofnode.h
index 3bd3ba4..f27aca5 100644
--- a/include/dm/ofnode.h
+++ b/include/dm/ofnode.h
@@ -1239,7 +1239,7 @@
  * returns the corresponding PHY interface type.
  *
  * @mac_node:	ofnode containing the property
- * Return: one of PHY_INTERFACE_MODE_* constants, PHY_INTERFACE_MODE_NONE on
+ * Return: one of PHY_INTERFACE_MODE_* constants, PHY_INTERFACE_MODE_NA on
  *	   error
  */
 phy_interface_t ofnode_read_phy_mode(ofnode mac_node);