Expose sanitizeLocationInfo as SystemApi

To support scrubbing the CellIdentity field from
within TelephonyRegistry, based on the changes for
mainline, this needs to be a SystemApi.

Bug: 147152984
Test: make update-api && make
Merged-In: If1cb6519a3da60ff0afab001c2804aaa70923dac
Change-Id: If1cb6519a3da60ff0afab001c2804aaa70923dac
(cherry picked from commit 1af97c9d91cd952347192c8a95e46dfa4d827092)
2 files changed