[WATCHDOG] omap4: Fix WDT Kconfig

This patch allows Watchdog timer to be selected for OMAP4 by fixing
Kconfig entry
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

drivers/watchdog/Kconfig

@@ -194,10 +194,10 @@ config EP93XX_WATCHDOG
 
 config OMAP_WATCHDOG
 	tristate "OMAP Watchdog"
-	depends on ARCH_OMAP16XX || ARCH_OMAP2 || ARCH_OMAP3
+	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
 	help
-	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430 watchdog.  Say 'Y'
-	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430 watchdog timer.
+	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
+	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
 
 config PNX4008_WATCHDOG
 	tristate "PNX4008 Watchdog"