dt-bindings: Add vendor prefix for uCRobotics

Cc: 96boards@ucrobotics.com
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -331,6 +331,7 @@ tronfy	Tronfy
 tronsmart	Tronsmart
 truly	Truly Semiconductors Limited
 tyan	Tyan Computer Corporation
+ucrobotics	uCRobotics
 udoo	Udoo
 uniwest	United Western Technologies Corp (UniWest)
 upisemi	uPI Semiconductor Corp.