Only log the names of the app packages which are installed from Google Play...

Only log the names of the app packages which are installed from Google Play Store in battery usage app optimization page

This is to meet the Guidelines for Logging Package Names: go/package-name-logging-guidance

Bug: 267430574
Fix: 267430574
Test: presubmit
Change-Id: Icf10000f5dcf87e45175d4005af8365191ad444d