ARM: dts: Use s3c6410-rtc instead of exynos3250-rtc for exynos3250/4415

Mark "samsung,exynos3250-rtc" compatible as deprecated because it
duplicates the "samsung,s3c6410-rtc". Use "samsung,s3c6410-rtc" on
Exynos3250 and Exynos4415 boards.
Signed-off-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: NChanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: NJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: NKukjin Kim <kgene@kernel.org>

Documentation/devicetree/bindings/rtc/s3c-rtc.txt

@@ -6,7 +6,8 @@ Required properties:
     * "samsung,s3c2416-rtc" - for controllers compatible with s3c2416 rtc.
     * "samsung,s3c2443-rtc" - for controllers compatible with s3c2443 rtc.
     * "samsung,s3c6410-rtc" - for controllers compatible with s3c6410 rtc.
-    * "samsung,exynos3250-rtc" - for controllers compatible with exynos3250 rtc.
+    * "samsung,exynos3250-rtc" - (deprecated) for controllers compatible with
+                                 exynos3250 rtc (use "samsung,s3c6410-rtc").
 - reg: physical base address of the controller and length of memory mapped
   region.
 - interrupts: Two interrupt numbers to the cpu should be specified. First

arch/arm/boot/dts/exynos3250.dtsi

@@ -189,7 +189,7 @@
 		};
 
 		rtc: rtc@10070000 {
-			compatible = "samsung,exynos3250-rtc";
+			compatible = "samsung,s3c6410-rtc";
 			reg = <0x10070000 0x100>;
 			interrupts = <0 73 0>, <0 74 0>;
 			interrupt-parent = <&pmu_system_controller>;

arch/arm/boot/dts/exynos4415.dtsi

@@ -177,7 +177,7 @@
 		};
 
 		rtc: rtc@10070000 {
-			compatible = "samsung,exynos3250-rtc";
+			compatible = "samsung,s3c6410-rtc";
 			reg = <0x10070000 0x100>;
 			interrupts = <0 73 0>, <0 74 0>;
 			status = "disabled";