dt-bindings: vendor-prefixes: Add Silex Insight vendor prefix

Silex Insight is a microelectronic company whose headquarter is located
in Belgium.
Web site of the company: https://www.silexinsight.com/Signed-off-by: Olivier Sobrie <olivier.sobrie@silexinsight.com>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -932,6 +932,8 @@ patternProperties:
     description: Silead Inc.
   "^silergy,.*":
     description: Silergy Corp.
+  "^silex-insight,.*":
+    description: Silex Insight
   "^siliconmitus,.*":
     description: Silicon Mitus, Inc.
   "^simtek,.*":