liblog: expect content only if ro.logd.kernel is enabled
am: 3949bddaf2

Change-Id: I742b3eddef9be435bb6f8fca9b3a6f26daf109f6
tree: 5d26ed5b133eb9991110d84b06bfd2a0e56635af
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/