dt-bindings: mips: cpu: Add MIPS 34Kc Core

Document MIPS 34Kc device tree bindings. It is used in the Realtek
RTL930x SoC.

Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

Author: abajk

Documentation/devicetree/bindings/mips/cpus.yaml

@@ -33,6 +33,7 @@ properties:
       - mips,mips1004Kc
       - mips,mips24KEc
       - mips,mips24Kc
+      - mips,mips34Kc
       - mips,mips4KEc
       - mips,mips4Kc
       - mips,mips74Kc