Fix NPE in WifiServiceImplTest

Bug: 37794067
Test: runtest --path ./tests/wifitests/src/com/android/server/wifi/WifiServiceImplTest.java
Change-Id: Ieb08c9fec1a2b130f156def10a6878c5b3340d4e
1 file changed
tree: 7483b79fe089cae0dfec555237b960172a5f976b
  1. libwifi_hal/
  2. libwifi_system/
  3. service/
  4. tests/
  5. PREUPLOAD.cfg