SF: Enforce thread safety for SurfaceFlinger class

Add thread annotations to display state and accessors. Add macros and
RAII helpers as escape hatches that are stricter and more meaningful
than NO_THREAD_SAFETY_ANALYSIS, and emit error on use of the latter.

Bug: 123715322
Test: Build
Change-Id: Ibada81998d70c940c7406ef292b2d487fb02189d
Merged-In: Ibada81998d70c940c7406ef292b2d487fb02189d