ARM: dts: omap3-gta04a5: Replace LXR reference with a local one

There's no need to use an external link when the file is already here.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap3-gta04a5.dts

@@ -82,7 +82,7 @@ OMAP3_CORE1_IOPAD(0x2138, PIN_INPUT | MUX_MODE4) /* gpin114 */
 
 /*
  * for WL183x module see
- * http://lxr.free-electrons.com/source/Documentation/devicetree/bindings/net/wireless/ti,wlcore.txt
+ * Documentation/devicetree/bindings/net/wireless/ti,wlcore.txt
  */
 
 &wifi_pwrseq {