OF: Add vendor prefix for TP-Link Technologies Co. Ltd

Signed-off-by: Alban Bedel <albeu@free.fr>
Cc: linux-mips@linux-mips.org
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -197,6 +197,7 @@ tlm	Trusted Logic Mobility
 toradex	Toradex AG
 toshiba	Toshiba Corporation
 toumaz	Toumaz
+tplink	TP-LINK Technologies Co., Ltd.
 truly	Truly Semiconductors Limited
 usi	Universal Scientific Industrial Co., Ltd.
 v3	V3 Semiconductor