Spatializer: add support for new latency modes

Add support for additional low latency modes needed for spatial audio
over Bluetooth LE. The new latency modes are used to indicate support
(HAL -> framework) and select (framework -> HAL) the HID transport
mechanism over LE link: either LE-AC or ISO.
Within the ISO mode, two options are defined: SW to indicate that the
IMU data connection to the spatializer effect is done
via the audio framework or HW to indicate that the connection is directly
from the BT controller to the spatializer effect. This last option is only
supported if the spatializer is instantiated in offload mode.

Although all modes are included in the parsing and selection logic, this
CL has only a partial implementation and does not support modes only
possible when the spatializer is offloaded to the audio DSP.

Bug: 307588546
Test: make
Test: manual dynamic spatial audio regression over BT classic
Change-Id: Idb88e4656c562c58df9c24b1ed66551f518790ec