Pipe Radio 1.2 LCE to DataConnection

-Add a new LinkCapacityEstimate class to handle
 both 1.0 and 1.2 formats of LCE for sending to
 DataConnection.
-Convert to a multi-registrant so that all active
 data connections can receive LCE updates.
-Add conversion for 1.2 LCE HAL to framework LCE.
-Automatically register for LCE when data connections
 become active.
-If 1.2 or greater HAL is detected, we no longer start
 the LCE service in the modem: rather it's always-on.

Bug: 72117292
Test: runtest frameworks-telephony
Change-Id: I076f2af404855cf961380559793b7328d7b83372