Merge changes from topic "usb-adb-separation"
* changes:
Update USB tests for ADB split
Move AdbDebuggingManager to AdbService
AdbService: move source of truth for enabled
Add empty AdbHandler
Add systemReady call for AdbService
Add function to query ADB state
Register USB as an ADB transport type
Add ADB transport skeleton
Add empty AdbManagerInternal for system server
Add empty AdbService to SystemServer
Move ADB debugging manager to core
Rename to AdbDebuggingManager
Move UsbDebuggingManager to new package