Annotations like @SystemApi should not be statically included and
jarjared because it will cause declaration mismatch and fail
the testAnnotation CTS

Eventually module IKE should be able to set sdk_version to a
module API type so that IKE can be restricted to only have system
and public API dependencies and can access to Android annotations
at the same time. See b/146757305.

Before the module API is ready, this commit makes IKE build against
"core_platform" and include annotation libs, system and public API
stubs as a workaround.

Bug: 147812912
Test: build, flash, reboot
Test: atest FrameworksIkeTests (passing)
Test: CtsSystemApiAnnotationTestCases:AnnotationTest#testAnnotation
      (no failure on ike)
Change-Id: I7b60e945a29a7c8c3e451c7aa910b213f010485b