Remove direct dependency from FrameworksCoreTestsRavenwood

... to FrameworksCoreTests, so that the entire FrameworksCoreTests
doesn't have to be rebuilt when running
`atest FrameworksCoreTestsRavenwood` after touching the source files.

Bug: 292141694
Test: atest FrameworksCoreTestsRavenwood
Test: m manifest_check && out/host/linux-x86/bin/manifest_check --enforce-uses-libraries out/soong/.intermediates/frameworks/base/core/tests/coretests/FrameworksCoreTests-resonly/android_common/manifest_fixer/AndroidManifest.xml --enforce-uses-libraries-status out/soong/.intermediates/frameworks/base/core/tests/coretests/FrameworksCoreTests-resonly/android_common/enforce_uses_libraries.status --aapt out/host/linux-x86/bin/aapt2 -o out/soong/.intermediates/frameworks/base/core/tests/coretests/FrameworksCoreTests-resonly/android_common/manifest_check/AndroidManifest.xml
Change-Id: I98a85150a92818967896ea4a28b8f9b35afd3828