dt-bindings: mtd: loongson,ls1b-nand-controller: Document the Loongson-2K0500 NAND controller

Add new compatible for the Loongson-2K NAND controller used for
Loongson-2K0500 SoC.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

Author: AaronDot

Documentation/devicetree/bindings/mtd/loongson,ls1b-nand-controller.yaml

@@ -4,13 +4,14 @@
 $id: http://devicetree.org/schemas/mtd/loongson,ls1b-nand-controller.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Loongson-1 NAND Controller
+title: Loongson NAND Controller
 
 maintainers:
   - Keguang Zhang <keguang.zhang@gmail.com>
+  - Binbin Zhou <zhoubinbin@loongson.cn>
 
 description:
-  The Loongson-1 NAND controller abstracts all supported operations,
+  The Loongson NAND controller abstracts all supported operations,
   meaning it does not support low-level access to raw NAND flash chips.
   Moreover, the controller is paired with the DMA engine to perform
   READ and PROGRAM functions.
@@ -24,6 +25,7 @@ properties:
       - enum:
           - loongson,ls1b-nand-controller
           - loongson,ls1c-nand-controller
+          - loongson,ls2k0500-nand-controller
       - items:
           - enum:
               - loongson,ls1a-nand-controller