Move BakedOpDispatcher to separate file

Change-Id: If7aad6db6b7e54a33eac9b9eddbe8cd844207282
diff --git a/libs/hwui/microbench/OpReordererBench.cpp b/libs/hwui/microbench/OpReordererBench.cpp
index eea0c7f..fa870c2 100644
--- a/libs/hwui/microbench/OpReordererBench.cpp
+++ b/libs/hwui/microbench/OpReordererBench.cpp
@@ -17,6 +17,7 @@
 #include <benchmark/Benchmark.h>
 
 #include "BakedOpState.h"
+#include "BakedOpDispatcher.h"
 #include "BakedOpRenderer.h"
 #include "OpReorderer.h"
 #include "RecordedOp.h"