Increase the sleep measurement tolerance to 100ms

Increase the sleep measurement tolerance to 100ms

The calibration_test works by measuring the "before"
device time, sleeping the thread for 200ms, and then
measuring the "after" device time. It then checks
the "after"-"before" delta is not more than 200ms
plus/minus 10ms.

This 10ms is too short for many systems and may
result in false failures. If the system is heavily
loaded the thread may sleep for more than 200ms.

Increasing the tolerance to 100ms appears to
eliminate the false failure I've been seeing.

Affects:

dEQP-VK.pipeline.timestamp.calibrated.calibration_test

Components: Vulkan

VK-GL-CTS issue: 1990

Change-Id: Ifc7f877daf8e361e39b3cd9ee447445529fd01d7