LastMileLogger: fix logging call

Add a missing flush() to a logging call.

(cherry picked from commit 91f2221c1e2f5f141fe4d01ba993d97372ada7f0)

Bug: 73094025
Test: m javac-check-wifi-service RUN_ERROR_PRONE=true
Test: tests/wifitests/runtests.sh -e class com.android.server.wifi.LastMileLoggerTest (on walleye)
Merged-In: I231d936117ee5425d9108e04db831cf86d9bdfe2
Change-Id: I231d936117ee5425d9108e04db831cf86d9bdfe2
1 file changed
tree: 862282a7af92c1798441834dddc38977218497bb
  1. service/
  2. PREUPLOAD.cfg