dt-bindings: net: Correct description of 'broken-turn-around'

The turn around bytes (2) are placed between the control phase of the
MDIO transaction and the data phase, correct the wording to be more
exact.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/ethernet-phy.yaml

@@ -81,7 +81,8 @@ properties:
     $ref: /schemas/types.yaml#definitions/flag
     description:
       If set, indicates the PHY device does not correctly release
-      the turn around line low at the end of a MDIO transaction.
+      the turn around line low at end of the control phase of the
+      MDIO transaction.
 
   enet-phy-lane-swap:
     $ref: /schemas/types.yaml#definitions/flag