Add new SystemApi methods for mainline

Add new SystemApi methods for Telecom to call in lieu of the old @hide
methods. Also moved CallerInfo and CallerInfoAsyncQuery to Telecom
because there are no more users in Telephony.

Bug: 141576016
Test: CTS
Change-Id: I458ba6bcfc03db72c0419b0cab2f0d0adfa971d4
Merged-In: I458ba6bcfc03db72c0419b0cab2f0d0adfa971d4