Migrate bootFinished of ISurfaceComposer to AIDL

And createDisplayEventConnection is migrated too.

Bug: 221898546
Bug: 211009610
Test: atest libsurfaceflinger_unittest libgui_test SurfaceFlinger_test
Change-Id: I2d0968262b86829b4cce13158446f1c85a4e55e4
20 files changed