InputTransport: allow resampling logs to be enabled without restart

To debug a flaky CTS test I'd like to add the resampling logs to the
DebugInputRule, for which they need to be enabled without restarting on
debuggable builds.

Bug: 292544797
Test: set the sysprop to DEBUG, touch the screen, and check resampling
      logs appear in logcat. Set the sysprop to UNKNOWN, touch the
      screen, and check that they no longer appear
Change-Id: Ibf7fe9b842374d0ee48f86c67e22a2fb3c78273f