ENABLE_DRM_AMDGPU must be defined when amdgpu_virtio is enabled;
otherwise, vdrm and amdgpu_virtio will have different definitions of
struct virgl_renderer_capset_drm. As a result, on amdgpu_virtio side,
the content of struct vdrm_device will be corrupted.
Thanks Honglei Huang <honglei1.huang@amd.com> for pointing out the
different definitions of struct virgl_renderer_capset_drm.
Cc: mesa-stable
Signed-off-by: Trigger Huang <Trigger.Huang@amd.com>
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37023>
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