logcat: use liblog to determine -b all list

- This is done to prevent the administrivia of adjusting
  logcat sources every time a new log id is added.

Change-Id: I0074afb00694c2c00f6c3a66e58c15691146a6c5
1 file changed
tree: 624fbc1de9d8c9e2c4810031293b047bfe2e2b14
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/