Revert "Revert "Telephony light grey list clean up for Q""

This reverts commit bab59cb9.

Reason for revert: Put maxTargetSdk=P now will move APIs onto light greylist
because per-SDK versioned dark greylist is not yet supported by ART. We can
keep doing annotation work without breaking existing apps targeting on P.

Bug:117934933
Bug:112477300

Change-Id: I5e0e693dde49fac3044cd73fd6360c4485f312ec
Merged-in: I5e0e693dde49fac3044cd73fd6360c4485f312ec