drm/rockchip: Fix spelling mistake "aligened" -> "aligned"

There is a spelling mistake in a drm_err message. Fix it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220505111044.374174-1-colin.i.king@gmail.com