of: Add vendor prefix 'netlogic'

Add vendor name "netlogic" in vendor-prefixes.txt, which will be used for
the Netlogic XLP and XLPII MIPS SoCs. These processors were from NetLogic
Microsystems that is now a part of Broadcom Corporation.
Signed-off-by: Subhendu Sekhar Behera <sbehera@broadcom.com>
Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -123,6 +123,7 @@ mxicy	Macronix International Co., Ltd.
 national	National Semiconductor
 neonode		Neonode Inc.
 netgear	NETGEAR
+netlogic	Broadcom Corporation (formerly NetLogic Microsystems)
 newhaven	Newhaven Display International
 nintendo	Nintendo
 nokia	Nokia