dt-bindings: add vendor prefix for Siliconfile Technologies lnc.

Add vendor prefix for Siliconfile Technologies lnc.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20210315124423.115039-1-krzysztof.kozlowski@canonical.comSigned-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -1022,6 +1022,8 @@ patternProperties:
     description: Silergy Corp.
   "^silex-insight,.*":
     description: Silex Insight
+  "^siliconfile,.*":
+    description: Siliconfile Technologies lnc.
   "^siliconmitus,.*":
     description: Silicon Mitus, Inc.
   "^simtek,.*":