Fix DisplayFinder for secondary Goldfish displays

Incorrectly handled in aosp/1843498. From logcat

`RanchuHwc: init: display:1 missing config:0`

Bug: b/201578179
Bug: b/202344168
Test: presubmit
Change-Id: I1e9f4349718dedf80dd29b332ad998d7b02b6cd5
1 file changed