SF: Move ownership of VsyncModulator to Scheduler

...as a prerequisite for calculating the VSYNC deadline of the leader
display (and deriving per-display state from it, e.g. present fences,
traces) in the Scheduler.

Bug: 241285475
Bug: 241285191
Test: Boot
Change-Id: Ieea136616435464dd0756525f94441b8e82ad06a
11 files changed