dt-bindings: arm: rockchip: fix description for Radxa CM3I

"Radxa CM3I" is the correct name[1], so fix the description.

[1] https://dl.radxa.com/cm3i/docs/hw/radxa_cm3i_product_brief.pdf

Signed-off-by: FUKAUMI Naoki <naoki@radxa.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20251229045838.2917-1-naoki@radxa.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

Author: RadxaNaoki

Documentation/devicetree/bindings/arm/rockchip.yaml

@@ -914,7 +914,7 @@ properties:
           - const: radxa,cm5
           - const: rockchip,rk3588s
 
-      - description: Radxa CM3 Industrial
+      - description: Radxa CM3I
         items:
           - enum:
               - radxa,e25