ARM: dts: exynos: Fix infinite interrupt in soft mode on Exynos4210 and Exynos5440

In soft (no-reboot) mode, the driver self-pings watchdog upon expiration
of an interrupt.  The interrupt has to be cleared, because otherwise
system enters infinite interrupt handling loop.

Use a samsung,s3c6410-wdt compatible to select appropriate quirk for
clearing the watchdog interrupt.
Signed-off-by: NKrzysztof Kozlowski <krzk@kernel.org>
Acked-by: NGuenter Roeck <linux@roeck-us.net>
Reviewed-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

arch/arm/boot/dts/exynos4210.dtsi

@@ -120,7 +120,7 @@
 	};
 
 	watchdog: watchdog@10060000 {
-		compatible = "samsung,s3c2410-wdt";
+		compatible = "samsung,s3c6410-wdt";
 		reg = <0x10060000 0x100>;
 		interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&clock CLK_WDT>;

arch/arm/boot/dts/exynos5440.dtsi

@@ -189,7 +189,7 @@
 	};
 
 	watchdog@110000 {
-		compatible = "samsung,s3c2410-wdt";
+		compatible = "samsung,s3c6410-wdt";
 		reg = <0x110000 0x1000>;
 		interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&clock CLK_B_125>;