omap2: Convert ARCH_OMAP24XX to ARCH_OMAP2

Convert ARCH_OMAP24XX to ARCH_OMAP2

Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 050ee14..b45e289 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -194,7 +194,7 @@
 
 config OMAP_WATCHDOG
 	tristate "OMAP Watchdog"
-	depends on ARCH_OMAP16XX || ARCH_OMAP24XX || ARCH_OMAP34XX
+	depends on ARCH_OMAP16XX || ARCH_OMAP2 || ARCH_OMAP34XX
 	help
 	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430 watchdog.  Say 'Y'
 	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430 watchdog timer.