omap2: Convert ARCH_OMAP24XX to ARCH_OMAP2

Convert ARCH_OMAP24XX to ARCH_OMAP2

Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c
index 30b5db7..59f92c8 100644
--- a/arch/arm/plat-omap/devices.c
+++ b/arch/arm/plat-omap/devices.c
@@ -244,7 +244,7 @@
 
 #if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE)
 
-#ifdef CONFIG_ARCH_OMAP24XX
+#ifdef CONFIG_ARCH_OMAP2
 #define	OMAP_RNG_BASE		0x480A0000
 #else
 #define	OMAP_RNG_BASE		0xfffe5000