drm/etnaviv: move exec_state to submit object

We'll need this in some places where only the submit is available. Also
this is a first step at slimming down the cmdbuf object.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.h b/drivers/gpu/drm/etnaviv/etnaviv_gem.h
index f525fd1..6328510 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.h
@@ -103,6 +103,7 @@ struct etnaviv_gem_submit {
 	struct kref refcount;
 	struct etnaviv_gpu *gpu;
 	struct dma_fence *out_fence, *in_fence;
+	u32 exec_state;
 	u32 flags;
 	unsigned int nr_pmrs;
 	struct etnaviv_perfmon_request *pmrs;