arch/arm/boot/dts/sun4i-a10.dtsi: convert to the new RTC compatibles

Switch the device tree to the new compatibles introduced in the RTC
drivers to have a common pattern accross all Allwinner SoCs.
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

arch/arm/boot/dts/sun4i-a10.dtsi

@@ -415,7 +415,7 @@ wdt: watchdog@01c20c90 {
 		};
 
 		rtc: rtc@01c20d00 {
-			compatible = "allwinner,sun4i-rtc";
+			compatible = "allwinner,sun4i-a10-rtc";
 			reg = <0x01c20d00 0x20>;
 			interrupts = <24>;
 		};