kernel/debug: Fix spelling mistake in debug_core.c

Fix typo: "notifiter" --> "notifier"
	  "overriden" --> "overridden"

Signed-off-by: Youling Tang <tangyouling@loongson.cn>
Link: https://lore.kernel.org/r/1596793480-22559-1-git-send-email-tangyouling@loongson.cn
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>

Author: Youling Tang

kernel/debug/debug_core.c

@@ -80,7 +80,7 @@ static int			exception_level;
 struct kgdb_io		*dbg_io_ops;
 static DEFINE_SPINLOCK(kgdb_registration_lock);
 
-/* Action for the reboot notifiter, a global allow kdb to change it */
+/* Action for the reboot notifier, a global allow kdb to change it */
 static int kgdbreboot;
 /* kgdb console driver is loaded */
 static int kgdb_con_registered;
@@ -155,7 +155,7 @@ early_param("nokgdbroundup", opt_nokgdbroundup);
 
 /*
  * Weak aliases for breakpoint management,
- * can be overriden by architectures when needed:
+ * can be overridden by architectures when needed:
  */
 int __weak kgdb_arch_set_breakpoint(struct kgdb_bkpt *bpt)
 {