Documentation: devicetree: net: refer to fixed-link.txt

Update the Freescale TSEC PHY, Broadcom GENET & SYSTEMPORT Device Tree
binding documentation to refer to the fixed-link Device Tree binding in
fixed-link.txt.

Reviewed-by: Thomas Petazzoni <[e-mail]>
Signed-off-by: Florian Fainelli <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

Documentation/devicetree/bindings/net/broadcom-bcmgenet.txt

···
 - fixed-link: When the GENET interface is connected to a MoCA hardware block or
   when operating in a RGMII to RGMII type of connection, or when the MDIO bus is
   voluntarily disabled, this property should be used to describe the "fixed link".
-  See Documentation/devicetree/bindings/net/fsl-tsec-phy.txt for information on
+  See Documentation/devicetree/bindings/net/fixed-link.txt for information on
   the property specifics
 
 Required child nodes:

Documentation/devicetree/bindings/net/broadcom-systemport.txt

···
 - local-mac-address: Ethernet MAC address (48 bits) of this adapter
 - phy-mode: Should be a string describing the PHY interface to the
   Ethernet switch/PHY, see Documentation/devicetree/bindings/net/ethernet.txt
-- fixed-link: see Documentation/devicetree/bindings/net/fsl-tsec-phy.txt for
+- fixed-link: see Documentation/devicetree/bindings/net/fixed-link.txt for
   the property specific details
 
 Optional properties:

Documentation/devicetree/bindings/net/fsl-tsec-phy.txt

···
     interrupt.  For TSEC and eTSEC devices, the first interrupt is
     transmit, the second is receive, and the third is error.
   - phy-handle : See ethernet.txt file in the same directory.
-  - fixed-link : <a b c d e> where a is emulated phy id - choose any,
-    but unique to the all specified fixed-links, b is duplex - 0 half,
-    1 full, c is link speed - d#10/d#100/d#1000, d is pause - 0 no
-    pause, 1 pause, e is asym_pause - 0 no asym_pause, 1 asym_pause.
+  - fixed-link : See fixed-link.txt in the same directory.
   - phy-connection-type : See ethernet.txt file in the same directory.
     This property is only really needed if the connection is of type
     "rgmii-id", as all other connection types are detected by hardware.