arm64: dts: amazon: alpine-v3: drop cache nodes unit addresses

Cache device nodes within cpus do not have "reg" property, so should not
have unit address, as reported by dtc W=1 warnings:

  alpine-v3.dtsi:247.24-254.5: Warning (unit_address_vs_reg): /cpus/cache@0: node has a unit name, but no reg or ranges property
  alpine-v3.dtsi:256.26-263.5: Warning (unit_address_vs_reg): /cpus/cache@100: node has a unit name, but no reg or ranges property
  alpine-v3.dtsi:265.26-272.5: Warning (unit_address_vs_reg): /cpus/cache@200: node has a unit name, but no reg or ranges property
  alpine-v3.dtsi:274.26-281.5: Warning (unit_address_vs_reg): /cpus/cache@300: node has a unit name, but no reg or ranges property
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20240402200744.79349-4-krzk@kernel.org

arch/arm64/boot/dts/amazon/alpine-v3.dtsi

@@ -244,7 +244,7 @@ cpu@303 {
 			next-level-cache = <&cluster3_l2>;
 		};
 
-		cluster0_l2: cache@0 {
+		cluster0_l2: cache-0 {
 			compatible = "cache";
 			cache-size = <0x200000>;
 			cache-line-size = <64>;
@@ -253,7 +253,7 @@ cluster0_l2: cache@0 {
 			cache-unified;
 		};
 
-		cluster1_l2: cache@100 {
+		cluster1_l2: cache-100 {
 			compatible = "cache";
 			cache-size = <0x200000>;
 			cache-line-size = <64>;
@@ -262,7 +262,7 @@ cluster1_l2: cache@100 {
 			cache-unified;
 		};
 
-		cluster2_l2: cache@200 {
+		cluster2_l2: cache-200 {
 			compatible = "cache";
 			cache-size = <0x200000>;
 			cache-line-size = <64>;
@@ -271,7 +271,7 @@ cluster2_l2: cache@200 {
 			cache-unified;
 		};
 
-		cluster3_l2: cache@300 {
+		cluster3_l2: cache-300 {
 			compatible = "cache";
 			cache-size = <0x200000>;
 			cache-line-size = <64>;