Add com.google.android.btservices as mainline-module-package-name

The Google Bluetooth apex package name as been renamed
to com.google.android.btservices so allow tests to run on
mts against that package as well

Bug: 258943608
Test: None
Ignore-AOSP-First: Will cherry-pick to AOSP
Change-Id: I9dcacbb031456223937ffc118683706338d5330a