ARM: dts: change SROM node compatible from generic to model specific

This patch changes SROM nodes compatible from generic to model specific
to match with binding documentation. Also updating property
"samsung,srom-page-mode" as it is not defined as bool instead of int

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

arch/arm/boot/dts/exynos5.dtsi

@@ -31,8 +31,8 @@
 		reg = <0x10000000 0x100>;
 	};
 
-	sromc@12250000 {
-		compatible = "samsung,exynos-srom";
+	memory-controller@12250000 {
+		compatible = "samsung,exynos4210-srom";
 		reg = <0x12250000 0x14>;
 	};