logd: drop mSequence from LogBufferElement

Use getRealTime() instead and leverage private liblog log_time
comparison and math functions.  This saves 8 bytes off each
element in the logging database.

Test: gTest liblog-unit-tests logd-unit-tests logcat-unit-tests
Bug: 35373582
Change-Id: Ia55ef8b95cbb2a841ccb1dae9a24f314735b076a
9 files changed
tree: bf508fa4d7994b713750671cb630ac75ba604c88
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/