dt-bindings: vendor-prefixes: Add Fitipower

Add Fitipower Integrated Technology Inc. to the vendor prefixes.

Acked-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Andreas Kemnade <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

Documentation/devicetree/bindings/vendor-prefixes.yaml

···
     description: Foxconn Industrial Internet
   "^firefly,.*":
     description: Firefly
+  "^fitipower,.*":
+    description: Fitipower Integrated Technology Inc.
   "^flipkart,.*":
     description: Flipkart Inc.
   "^focaltech,.*":