dt-bindings: vendor-prefixes: Add a broadmobi entry

Add Shanghai Broadmobi Communication Technology Co.,Ltd. for their modem
dts entries.
Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -149,6 +149,8 @@ patternProperties:
     description: Bosch Sensortec GmbH
   "^boundary,.*":
     description: Boundary Devices Inc.
+  "^broadmobi,.*":
+    description: Shanghai Broadmobi Communication Technology Co.,Ltd.
   "^brcm,.*":
     description: Broadcom Corporation
   "^buffalo,.*":