Add 1.2 NN HAL: IPreparedModel & callbacks.

Create 1.2 version IPreparedModel, IPreparedModelCallback, and
IExecutionCallback.

Currently the new interfaces are created the same as 1.0 version,
but will have more methods introduced in later CLs.

Bug: 73506513
Test: VtsHalNeuralnetworksV1_xTargetTest with 1.2 sample driver
Change-Id: Icf4d04c22f88e825d87562f1489377fdf6bf585d
diff --git a/neuralnetworks/1.2/IDevice.hal b/neuralnetworks/1.2/IDevice.hal
index aff4cf3..6a77961 100644
--- a/neuralnetworks/1.2/IDevice.hal
+++ b/neuralnetworks/1.2/IDevice.hal
@@ -17,9 +17,9 @@
 package android.hardware.neuralnetworks@1.2;
 
 import @1.0::ErrorStatus;
-import @1.0::IPreparedModelCallback;
 import @1.1::ExecutionPreference;
 import @1.1::IDevice;
+import IPreparedModelCallback;
 
 /**
  * This interface represents a device driver.