Don't lose critical success/failure messages

Occasionally, "dumpsys connectivity --diag" will show measurement
results without success or failure messages.  Properly record the
error before decrementing the countdown latch.

Bug: 20733156
Change-Id: Ic654dedb753a65a96fe870f79fb296fbfc459fcb
1 file changed
tree: 290a9ea698ec642f9b53efb26fb8b33f351a2c39
  1. core/
  2. services/
  3. tests/