arm: dts: k3-am62a*: Sync with kernel v6.7-rc1

Sync with kernel v6.7-rc1 and sync up the u-boot dts files accordingly.

Signed-off-by: Nishanth Menon <nm@ti.com>
diff --git a/arch/arm/dts/k3-am62a7.dtsi b/arch/arm/dts/k3-am62a7.dtsi
index 331d89f..58f1c43 100644
--- a/arch/arm/dts/k3-am62a7.dtsi
+++ b/arch/arm/dts/k3-am62a7.dtsi
@@ -95,8 +95,9 @@
 
 	L2_0: l2-cache0 {
 		compatible = "cache";
+		cache-unified;
 		cache-level = <2>;
-		cache-size = <0x40000>;
+		cache-size = <0x80000>;
 		cache-line-size = <64>;
 		cache-sets = <512>;
 	};