SF: Fix feedback loop with refresh rate overlay

RefreshRateOverlay was refactored to use transactions instead of APIs
internal to SF. A side effect is that the overlay layer feeds back into
the frame rate detection and idle heuristics, which causes oscillation
that trends to the high refresh rate.

The transaction to setFrameRate failed to apply, as the NoVote argument
was invalid. Make it valid, such that LayerHistory::summarize skips the
overlay layer.

Do not reset the idle timer for solely NO_VOTE transactions.

Bug: 221081400
Test: flame is not stuck at 90 Hz when overlay is enabled.
Test: Same with sf.debug.show_refresh_rate_overlay_spinner
Test: SetFrameRateTest
Change-Id: I6322c1c487672b602a0f974e8ecf445633dcc3a1