ARM: dts: exynos: Override thermal by label in Galaxy I9000

Using full paths to extend or override a device tree node is error prone
since if there was a typo error, a new node will be created instead of
extending the node as it was desired.  This will lead to run-time errors
that could be hard to detect.

A mistyped label on the other hand, will cause a dtc compile error
(during build time).
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20200830135200.24304-17-krzk@kernel.org

arch/arm/boot/dts/exynos4210-i9100.dts

@@ -217,9 +217,17 @@ pmic_ap_clk: pmic-ap-clk {
 			clock-frequency = <32768>;
 		};
 	};
+};
+
+&camera {
+	status = "okay";
+};
 
-	thermal-zones {
-		cpu_thermal: cpu-thermal {
+&cpu0 {
+	cpu0-supply = <&varm_breg>;
+};
+
+&cpu_thermal {
 	cooling-maps {
 		map0 {
 			/* Corresponds to 800MHz */
@@ -230,16 +238,6 @@ map1 {
 			cooling-device = <&cpu0 4 4>;
 		};
 	};
-		};
-	};
-};
-
-&camera {
-	status = "okay";
-};
-
-&cpu0 {
-	cpu0-supply = <&varm_breg>;
 };
 
 &ehci {