Switch from setSupports... to setBlurAlgorithm

Bug: 185365391
Change-Id: I4648c2a0c9c5bb39146b99f5a42851025b01c7bc
Test: atest RenderEngineBench
diff --git a/libs/renderengine/benchmark/RenderEngineBench.cpp b/libs/renderengine/benchmark/RenderEngineBench.cpp
index 101f519..05a2063 100644
--- a/libs/renderengine/benchmark/RenderEngineBench.cpp
+++ b/libs/renderengine/benchmark/RenderEngineBench.cpp
@@ -71,7 +71,7 @@
                         .setImageCacheSize(1)
                         .setEnableProtectedContext(true)
                         .setPrecacheToneMapperShaderOnly(false)
-                        .setSupportsBackgroundBlur(true)
+                        .setBlurAlgorithm(renderengine::RenderEngine::BlurAlgorithm::KAWASE)
                         .setContextPriority(RenderEngine::ContextPriority::REALTIME)
                         .setThreaded(threaded)
                         .setGraphicsApi(graphicsApi)