[Intel-gfx] [PATCH 1/3] drm/i915/selftests: make mock_context.h self-contained

[Chris Wilson]

Quoting Jani Nikula (2019-12-19 15:56:50)
> Fix the forward declaration.
> 
> Cc: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Masahiro Yamada <yamada.masahiro at socionext.com>
> Signed-off-by: Jani Nikula <jani.nikula at intel.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris