Modifying libRS internal communication to handle network rendering.

Change-Id: I8c8b3cc3402ecf4ba774e1d668dce25ff0af0e5a
diff --git a/libs/rs/rsAllocation.cpp b/libs/rs/rsAllocation.cpp
index 6b37e03..a759004 100644
--- a/libs/rs/rsAllocation.cpp
+++ b/libs/rs/rsAllocation.cpp
@@ -780,7 +780,7 @@
     a->data(rsc, xoff, yoff, lod, face, w, h, data, sizeBytes);
 }
 
-void rsi_AllocationRead(Context *rsc, RsAllocation va, void *data) {
+void rsi_AllocationRead(Context *rsc, RsAllocation va, void *data, size_t data_length) {
     Allocation *a = static_cast<Allocation *>(va);
     a->read(data);
 }