Allow bouncycastle to build against art module public API

Adding the libcore-unsupportedappusage-annotation to the
art-module-public-api-stubs-system-modules makes the CorePlatformApi,
IntraCoreApi and UnsupportedAppUsage annotations available for core
libraries that can build against the art module public API without
having to make the libcore-unsupportedappusage-annotation library
externally visible.

Bug: 141613583
Test: m checkbuild
Change-Id: I0d29e4370bd5228a54794c64e3c15101fbef6576
2 files changed