Break the dependency on i915_drv.h.
Signed-off-by: NJani Nikula <jani.nikula@intel.com>
Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ee740f494e416d875e057c2eda585f4e66d65500.1638366969.git.jani.nikula@intel.com