dt-bindings: arm: add UNI-T UTi260B

Add compatible value for i.MX6ULL based UNI-T UTi260B thermal camera.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Documentation/devicetree/bindings/arm/fsl.yaml

@@ -710,6 +710,7 @@ properties:
               - toradex,colibri-imx6ull      # Colibri iMX6ULL Modules
               - toradex,colibri-imx6ull-emmc # Colibri iMX6ULL 1GB (eMMC) Module
               - toradex,colibri-imx6ull-wifi # Colibri iMX6ULL Wi-Fi / BT Modules
+              - uni-t,uti260b             # UNI-T UTi260B Thermal Camera
           - const: fsl,imx6ull
 
       - description: i.MX6ULL Armadeus Systems OPOS6ULDev Board