Try a longer timeout for initial sync

* We are still seeing an issue with at least one user on initial
  calendar sync.
* Increase the read timeout a great deal for initial sync, as it
  can a very long time for the server to respond

Bug: 2569162
Change-Id: I495c38dc58d9a80c5a21e40b6fc5d165d10a3c1a
1 file changed