Add support library compabibility layer

This change provides a new "libneuralnetworks_cl" static library that
contains a version of the NNAPI runtime wihout non-NDK dependencies.
Vendors can link against this library to create support library drivers.

This change introduces new preprocessor symbols:
- NN_COMPATIBILITY_LIBRARY_BUILD
- NN_NO_AHWB
- NN_NO_BURST

The last two temporarily limit corresponding runtime features and should
be removed by later changes.

If NN_COMPATIBILITY_LIBRARY_BUILD is defined, then NN_NO_AHWB and
NN_NO_BURST should be defined and NN_INCLUDE_CPU_IMPLEMENTATION should
be undefined.

Bug: 160667944
Bug: 170289677
Test: NNT_static
Change-Id: I5685d0e46dc9461d62815f61dddd5fc7aedf3762
Merged-In: I5685d0e46dc9461d62815f61dddd5fc7aedf3762
(cherry picked from commit 8c4917bbc4c123778d9c4d0b9a5df79897fc4051)

common/operations/LSTM.cpp

diff --git a/common/operations/LSTM.cpp b/common/operations/LSTM.cpp
index e64d0c4..5c16ccf 100644
--- a/common/operations/LSTM.cpp
+++ b/common/operations/LSTM.cpp
@@ -18,13 +18,15 @@
 
 #include "LSTM.h"
 
+#include <tensorflow/lite/kernels/internal/tensor_utils.h>
+
 #include <vector>
 
 #include "CpuExecutor.h"
 #include "CpuOperationUtils.h"
+#include "LegacyUtils.h"
 #include "OperationsUtils.h"
 #include "Tracing.h"
-#include "Utils.h"
 #include "nnapi/Types.h"
 
 namespace android {