liblog: sleep 20ms before critical property_set

Going too fast can result in the property not being set
and causing an extreme corner case failure being reported
and blamed on is_loggable functionality.

Bug: 25792367
Change-Id: Idda6f67d655d8a84d2809daf695394d5293e7431
1 file changed
tree: eb855f19c7a81aa3cb1434db7001afe3f9949a05
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/