Add Tecon Microprocessor Technologies, LLC vendor prefix

Signed-off-by: NDmitry Dunaev <dunaev@tecon.ru>
Signed-off-by: NRob Herring <robh@kernel.org>

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -341,6 +341,7 @@ thine	THine Electronics, Inc.
 ti	Texas Instruments
 tianma	Tianma Micro-electronics Co., Ltd.
 tlm	Trusted Logic Mobility
+tmt	Tecon Microprocessor Technologies, LLC.
 topeet  Topeet
 toradex	Toradex AG
 toshiba	Toshiba Corporation