dt-bindings: Add vendor prefix for Airoha

Add vendor prefix "airoha" for Airoha, a subsidiary of MediaTek
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NJohn Crispin <john@phrozen.org>
Signed-off-by: NBert Vermeulen <bert@biot.com>
Signed-off-by: NFelix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20211220211854.89452-2-nbd@nbd.nameSigned-off-by: NMatthias Brugger <matthias.bgg@gmail.com>

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -61,6 +61,8 @@ patternProperties:
     description: Aeroflex Gaisler AB
   "^aesop,.*":
     description: AESOP Embedded Forum
+  "^airoha,.*":
+    description: Airoha
   "^al,.*":
     description: Annapurna Labs
   "^alcatel,.*":