Show build config in dumpsys SurfaceFlinger

This adds a line to the "dumpsys SurfaceFlinger" output that shows
build-time configuration values.

Example:
 Build configuration: [sf HAS_CONTEXT_PRIORITY] [libui] \
  [libgui USE_FENCE_SYNC]

Bug 7206633

Change-Id: Ibe1856b459d34a4be6ee83a4ebfd2807e6cc68a0
8 files changed