mei watchdog doesn't reboot the system it only produces event
therefore mark it as WDIOF_ALARMONLY.
This patch depends on:
commit 
2bbeed016dd96045ec82c3a309afddcc3a0db1d2
Author: Alan Cox <alan@linux.intel.com>
watchdog: Add a flag to indicate the watchdog doesn't reboot things
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 
 };
 static const struct watchdog_info wd_info = {
                .identity = INTEL_AMT_WATCHDOG_ID,
-               .options = WDIOF_KEEPALIVEPING,
+               .options = WDIOF_KEEPALIVEPING | WDIOF_ALARMONLY,
 };
 
 static struct watchdog_device amt_wd_dev = {