To getPreferenceControllers. "all" is redundant. Then internally, the
old getPreferenceControllers() is renamed to
createPreferenceControllers() to emphasize the controllers are created
from code (versus the ones created from xml).
Bug: 73668763
Test: robotest
Change-Id: Ifec46aefdc2a418031c8e152028b30bdcd396fc7
Also updated UsbBackend to use the new UsbFunctions
api.
Added new unit tests for UsbDetailsHeaderController
and UsbDetailsProfilesController.
Bug: 69333961
Test: make RunSettingsRoboTests
Change-Id: I133750190bb61dfe0e20b06f50e50ea13b347f1e