Moved desiredPresentTime for BLAST into State

Currently mDesiredPresentTime was being accessed by both main thread and
binder thread. Moved desiredPresentTime into State struct so it can be
accessed by the binder thread with current state and by the main thread
with drawing state.

Test: BLAST continues to work
Change-Id: Ib32f4fb8963549e57c15fa2eb934b30fffe67171