panfrost: Remove the panfrost_driver abstraction

The non-DRM backend is gone. Let's get rid of the panfrost_driver
abstraction and call the panfrost_drm_xxx() functions directly.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
7 files changed