drm/hisilicon: Remove the unused include statements

Remove some unused include statements.

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/1597218179-3938-2-git-send-email-tiantao6@hisilicon.com
3 files changed