dt-bindings: Add vendor prefix for Solomon Goldentek Display Corporation

Solomon Goldentek Display Corporation is a Taiwanese LCD/LCM manufacturer.
Company Site: http://www.goldentek.com.twAcked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -305,6 +305,7 @@ seagate	Seagate Technology PLC
 semtech	Semtech Corporation
 sensirion	Sensirion AG
 sff	Small Form Factor Committee
+sgd	Solomon Goldentek Display Corporation
 sgx	SGX Sensortech
 sharp	Sharp Corporation
 shimafuji	Shimafuji Electric, Inc.