include: Fix spelling

Change-Id: Iadc813bc8208278996b2b1aa20cfb156ec06fac9
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/3755
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/include/bootstate.h b/src/include/bootstate.h
index af18989..46662d5 100644
--- a/src/include/bootstate.h
+++ b/src/include/bootstate.h
@@ -148,7 +148,7 @@
 	bscb_->arg = arg_
 
 /* The following 2 functions schedule a callback to be called on entry/exit
- * to a given state. Note that thare are no ordering guarantees between the
+ * to a given state. Note that there are no ordering guarantees between the
  * individual callbacks on a given state. 0 is returned on success < 0 on
  * error. */
 int boot_state_sched_on_entry(struct boot_state_callback *bscb,