dt-bindings: vendor-prefixes: add ArmSoM

Add vendor prefix for ArmSoM (https://www.armsom.org)
Signed-off-by: Jianfeng Liu <liujianfeng1994@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Weizhao Ouyang <weizhao.ouyang@arm.com>
Link: https://lore.kernel.org/r/20240420034300.176920-2-liujianfeng1994@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -151,6 +151,8 @@ patternProperties:
     description: ARM Ltd.
   "^armadeus,.*":
     description: ARMadeus Systems SARL
+  "^armsom,.*":
+    description: ArmSoM Technology Co., Ltd.
   "^arrow,.*":
     description: Arrow Electronics
   "^artesyn,.*":