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.cnSigned-off-by: Daniel Thompson <daniel.thompson@linaro.org>