Add new OperandType FLOAT16.

Bug: 120225191
Test: NeuralNetworksTest_static
Test: VtsHalNeuralnetworksV1_2TargetTest
Change-Id: Iaabebe490303c9c93a34d319c8c594df13fb7899
Merged-In: Iaabebe490303c9c93a34d319c8c594df13fb7899
(cherry picked from commit 7bca34bee702be0aac9f56b11ee9975f3ce08dd9)
2 files changed