Add TENSOR_QUANT8_SYMM_PER_CHANNEL to operand types

Added ExtraParams union for extra Operand parameters.
It's a more sensible approach than adding more fields
to the Operand struct.

Bug: 119249581
Test: NeuralNetworksTest_static
Test: VtsHalNeuralnetworksV1_0TargetTest
Test: VtsHalNeuralnetworksV1_1TargetTest
Test: VtsHalNeuralnetworksV1_2TargetTest
Change-Id: I59731134cf0ea34cf9e10342686d331da9e9c3b3