IVGCVSW-6989 "Merged experimental/armnn_shim_sl"

* Updated Serializer CMakeLists.txt to build armnnSerializerObj
* Added constant tensors as input support to SL

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: I22f6cf50147d99a01f7fe70d7446b114a4c57af3
diff --git a/shim/sl/support_library_service.cpp b/shim/sl/support_library_service.cpp
new file mode 100644
index 0000000..14556fd
--- /dev/null
+++ b/shim/sl/support_library_service.cpp
@@ -0,0 +1,18 @@
+//
+// Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "canonical/ArmnnDriver.hpp"
+
+#include <nnapi/IDevice.h>
+
+namespace android::nn
+{
+
+std::vector<SharedDevice> getDevices()
+{
+    return { std::make_shared<armnn_driver::ArmnnDriver>(DriverOptions()) };
+}
+
+}  // namespace android::nn