Merge branch 'drm-hisilicon-next' of github.com:xin3liang/linux into drm-next

misc hisilicon cleanups.

* 'drm-hisilicon-next' of github.com:xin3liang/linux:
  drm/hisilicon: Fix DRM_INFO printed issue
  drm/hisilicon: Make kirin_drm_unbind sufficient
  drm/hisilicon: Use drm_connector_register_all