watchdog: intel_scu_watchdog: fix spelling mistake: "set_hearbeat" -> "set_heartbeat"

There is a spelling mistake in a pr_debug message. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

drivers/watchdog/intel_scu_watchdog.c

@@ -224,7 +224,7 @@ static int intel_scu_set_heartbeat(u32 t)
 		 watchdog_device.timer_tbl_ptr->freq_hz);
 	pr_debug("set_heartbeat: timer_set is %x (hex)\n",
 		 watchdog_device.timer_set);
-	pr_debug("set_hearbeat: timer_margin is %x (hex)\n", timer_margin);
+	pr_debug("set_heartbeat: timer_margin is %x (hex)\n", timer_margin);
 	pr_debug("set_heartbeat: threshold is %x (hex)\n",
 		 watchdog_device.threshold);
 	pr_debug("set_heartbeat: soft_threshold is %x (hex)\n",