Add tensorflow/compiler to python_protos to fix windows cmake build breakage.

Author: saeta

tensorflow/contrib/cmake/python_protos.txt

@@ -2,6 +2,7 @@ tensorflow/core
 tensorflow/core/kernels/boosted_trees
 tensorflow/core/profiler
 tensorflow/python
+tensorflow/compiler/xla
 tensorflow/contrib/boosted_trees/proto
 tensorflow/contrib/cloud/kernels
 tensorflow/contrib/decision_trees/proto