dt-bindings: vendor-prefixes: Add Square

Add vendor prefix for Square (https://squareup.com).
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230407194905.611461-2-bryan.odonoghue@linaro.org

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -1267,6 +1267,8 @@ patternProperties:
     description: SpinalHDL
   "^sprd,.*":
     description: Spreadtrum Communications Inc.
+  "^square,.*":
+    description: Square
   "^ssi,.*":
     description: SSI Computer Corp
   "^sst,.*":