Move common compat lib to platform_testing

Continue to build the hostside piece of it here since
those build files will be erased in
tools/tradefederation/prebuilts for suites.

Test: make cts
Bug: 173811050
Change-Id: Ifa13542b0327839598da14d23d58f8e469de5dab
48 files changed
tree: e3b96ecf1fb5690fc7255b27f24e314e86cf7905
  1. common/
  2. OWNERS
  3. PREUPLOAD.cfg