[Passpoint] Add missing error log for mismatching cert fingerprint

With vendors deploying Passpoint OSU, it is important to log errors
clearly when debugging issues. This specific error was not logged
and caused additional debugging cycles to root cause with a vendor
that started OSU testing.

Bug: 137556013
Test: Provision with <vendor>
Test: atest OsuServerConnectionTest
Change-Id: I09e6d0d5bdb3175c5c2eff5c941369d25636d10b
1 file changed
tree: 9485554b6b399aeb87e22e8514b231b509728f45
  1. service/
  2. PREUPLOAD.cfg