CtsVideoTestCases were failing on video encode/decode performance
tests for the wahoo-family devices because there is no no performance
characteristic file in the build. This adds an initial set of
performance characteristics, taken verbatim from the marlin devices.
The numbers will need updating before the device is released.
Bug: 38134584
Test: successful run of affected CTS tests
Change-Id: Idd37095a2883ee1e00a2f774da23ce3202c07b04
