Increase TimestampVerifier constants for watches Increase TEST_MAX_JITTER_MS_ALLOWED and TEST_STD_JITTER_MS_ALLOWED for watches to empirically derived values to fix flaky testFastTimestamp. Also fix some warnings. Bug: 346378321 Test: Manual Flag: TEST_ONLY Change-Id: I0ecc812443d8b2ba24960b498d528b5d9a2c45bd Signed-off-by: Michael Dakin <dakinm@google.com>