Fence: use modern sync info API

The old sync info API based on the legacy staging Android sync uapi is
deprecated; stop using it here so it can eventually be removed.

Bug: 35326015
Test: adb shell dumpsys SurfaceFinger --latency
Change-Id: Ida58adb0f0057485d3768b959697b4d583abd80b
Merged-In: Ida58adb0f0057485d3768b959697b4d583abd80b