dts: bflb: Add xtheadcmo to BL61x

Add the xtheadcmo cache node to bl61x

Signed-off-by: Camille BAUD <[email protected]>

Author: VynDragon

dts/riscv/bflb/bl61x.dtsi

@@ -89,6 +89,12 @@
 				#interrupt-cells = <2>;
 				interrupt-controller;
 			};
+
+			cache {
+				compatible = "xuantie,xtheadcmo";
+				dcache-line-size = <32>;
+				icache-line-size = <32>;
+			};
 		};
 	};