radv: Always flush before writing acceleration structure properties

Equivalent of 284e604872 but for acceleration structure queries.
If an app inserts a barrier between AS builds and writing AS properties,
we must respect it or things will blow up.

Cc: mesa-stable
Reviewed-by: Konstantin Seurer <konstantin.seurer@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23568>
(cherry picked from commit 4181e144ef)

.pick_status.json

@@ -2488,7 +2488,7 @@
         "description": "radv: Always flush before writing acceleration structure properties",
         "nominated": true,
         "nomination_type": 0,
-        "resolution": 0,
+        "resolution": 1,
         "main_sha": null,
         "because_sha": null
     },

src/amd/vulkan/radv_query.c

@@ -2213,7 +2213,7 @@ radv_CmdWriteAccelerationStructuresPropertiesKHR(
 
    radv_cs_add_buffer(cmd_buffer->device->ws, cs, pool->bo);
 
-   emit_query_flush(cmd_buffer, pool);
+   si_emit_cache_flush(cmd_buffer);
 
    ASSERTED unsigned cdw_max =
       radeon_check_space(cmd_buffer->device->ws, cs, 6 * accelerationStructureCount);