DO_NOT_MERGE dt-bindings: add foobar vendor-prefix

Add prefix for an example SoC vendor whose designs include controllers
that implement CBQRI.

Co-developed-by: Adrien Ricciardi <aricciardi@baylibre.com>
Signed-off-by: Adrien Ricciardi <aricciardi@baylibre.com>
Signed-off-by: Drew Fustini <dfustini@baylibre.com>

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -470,6 +470,8 @@ patternProperties:
     description: Shenzhen Fly Young Technology Co.,LTD.
   "^fii,.*":
     description: Foxconn Industrial Internet
+  "^foobar,.*":
+    description: Foobar Systems
   "^firefly,.*":
     description: Firefly
   "^focaltech,.*":