Fix typo in comment.
Signed-off-by: NZhiyuan Dai <daizhiyuan@phytium.com.cn>
Link: https://lore.kernel.org/r/1647831387-3686-1-git-send-email-daizhiyuan@phytium.com.cnSigned-off-by: NWill Deacon <will@kernel.org>