Cut the dependency

The CtsCurrentApiSignatureTestCases test is failed because of
compatibility-device-util dependency. To cut the dependency, the
cts-api-signature-multilib-test library is created.

Test: copy frameworks/base/test-base/api/current.txt into
prebuilts/sdk/28/public/api/android.test.base.txt and manually add some
APIs there.
run cts -m CtsSharedLibsApiSignatureTestCases
Test: cts-tradefed run cts -m CtsCurrentApiSignatureTestCases &&
check the unexpected_class log
Bug: 123040759

Change-Id: I729e02f054bedc704efb5b06ec23756ac3bfc6bd
6 files changed