Return sp on call to createSurfaceInterceptor

This is so that SurfaceInterceptor can implement IBinder::DeathRecipient, since that inherits RefBase.h and must be stored as an sp.

Test: Make sure the device boot when SurfaceInterceptor extends RefBase
Change-Id: I264cd9e0a8517ae5a425b3a493631c7c42220473
9 files changed