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
Change-Id: I9dcacbb031456223937ffc118683706338d5330a
Merged-In: I9dcacbb031456223937ffc118683706338d5330a
(cherry picked from commit 4293b48e)