dt-bindings: vendor-prefixes: Add YLM

Shenzhen Yangliming Electronic Technology Co., Ltd., abbreviated YLM or
YLMChina, and known as Anbernic in the rest of the world, is a Chinese
manufacturer of handheld game consoles, some of which are known to be
running Linux.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -1167,6 +1167,8 @@ patternProperties:
     description: Shenzhen Xunlong Software CO.,Limited
   "^xylon,.*":
     description: Xylon
+  "^ylm,.*":
+    description: Shenzhen Yangliming Electronic Technology Co., Ltd.
   "^yna,.*":
     description: YSH & ATIL
   "^yones-toptech,.*":