[PasspointNominator] Ignore uninitialized WAN Metrics ANQP element

Ignore uninitialized WAN Metrics ANQP element - when all values
are 0's, then ignore it and include the network as a possible
nominee.

Bug: 169106748
Test: atest PasspointNetworkNominateHelperTest
Change-Id: Icc0aa8cb3a46cb954d0b9f3cf70118fa26102c75
2 files changed
tree: edfb86c265c6b1fbbce139206bed8044d94c84dc
  1. apex/
  2. service/
  3. metrics_pdd_hook.py
  4. PREUPLOAD.cfg