Increase PreRebootDexoptJob update engine timeout to 20s We got stack traces from the field on update_engine error, where most of them show the cause being "Timed out while waiting for update_engine". This CL attempts to solve the issue by increasing the timeout. Bug: 435143755 Test: Presubmit Flag: EXEMPT bugfix Change-Id: Iaeebc546e9e603a112f5c53077d9b650e01d992d