Add TENSOR_QUANT16_ASYMM to operand types

Add new OperandType::TENSOR_QUANT16_ASYMM.
Add VTS validation for the new type.

Bug: 113561892
Test: NeuralNetworksTest_static
Test: VtsHalNeuralnetworksV1_0TargetTest
Test: VtsHalNeuralnetworksV1_1TargetTest
Test: VtsHalNeuralnetworksV1_2TargetTest
Change-Id: I4f9ed6a33d5d3ec227e9f335df71954c73edf344
Merged-In: I4f9ed6a33d5d3ec227e9f335df71954c73edf344
(cherry picked from commit 5d7c9952)