panfrost: Skip flushes only for wallpapers, not any blit

We need the flush from u_blitter for a normal blit (e.g. for mipmaps);
it's only wallpaper-related blits that are special-cased.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>

src/gallium/drivers/panfrost/pan_context.c

@@ -2313,7 +2313,7 @@ panfrost_set_framebuffer_state(struct pipe_context *pctx,
         bool is_scanout = panfrost_is_scanout(ctx);
         bool has_draws = job->last_job.gpu;
 
-        if (!ctx->blitter->running && (!is_scanout || has_draws)) {
+        if (!ctx->wallpaper_batch && (!is_scanout || has_draws)) {
                 panfrost_flush(pctx, NULL, PIPE_FLUSH_END_OF_FRAME);
         }