staging: mei: adding watchdog core dependency to kconfig

Signed-off-by: Oren Weil <oren.jer.weil@intel.com>
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/mei/Kconfig

 config INTEL_MEI
 	tristate "Intel Management Engine Interface (Intel MEI)"
-	depends on X86 && PCI && EXPERIMENTAL
+	depends on X86 && PCI && EXPERIMENTAL && WATCHDOG_CORE
 	help
 	  The Intel Management Engine (Intel ME) provides Manageability,
 	  Security and Media services for system containing Intel chipsets.