dt-bindings: usb: dwc2: rename sophgo usb compatible string

The support for Sophgo CV1800 series SoC introduces a wildcard compatible
string "sophgo,cv1800-usb", rename it to sophgo,cv1800b-usb to match a
real world SoC. As the compatible string is not used in any board dts.
It is safe to rename it.

Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Link: https://lore.kernel.org/r/20250618031132.373216-2-inochiama@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Documentation/devicetree/bindings/usb/dwc2.yaml

@@ -59,7 +59,7 @@ properties:
       - const: amcc,dwc-otg
       - const: apm,apm82181-dwc-otg
       - const: snps,dwc2
-      - const: sophgo,cv1800-usb
+      - const: sophgo,cv1800b-usb
       - const: st,stm32f4x9-fsotg
       - const: st,stm32f4x9-hsotg
       - const: st,stm32f7-hsotg