tree a18fbae03aafe85deec36cb767c6f4a7a5fd6610
parent 854b640eae48d4574c239be9192879c4a79e5e6b
author Doug Horn <doughorn@google.com> 1619124332 -0700
committer Doug Horn <doughorn@google.com> 1619124416 -0700

Use only a single SyncThread.

Multiple threads were causing a stream of eglClientWaitSync
abnormal exit errors with the 5.4 kernel. Temporarily only
use a single thread while we debug the root cause.

Bug: 186138817
Bug: 186146855

Change-Id: I8507a65c374c228e2c2fd17d14c79b25b0ad6a04