Add delay before movement on noise test

In order to give the touch panel some time to adapt to the noise being
applied to it, stop for one second with the finger on the surface before
moving. When analyzing the performance, we will throw out the first
second of results.

BUG=b:148627899
TEST=Run test

Change-Id: I30c80cc0f10147362c69d6533f8793827653685b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/optofidelity_TPPT/+/2667637
Reviewed-by: Harry Cutts <hcutts@chromium.org>
Commit-Queue: Sean O'Brien <seobrien@chromium.org>
Tested-by: Sean O'Brien <seobrien@chromium.org>
2 files changed