This change sets LOCAL_SDK_VERSION for all packages where
this is possible without breaking the build, and
LOCAL_PRIVATE_PLATFORM_APIS := true otherwise.
Setting one of these two will be made required soon, and this
is a change in preparation for that. Not setting LOCAL_SDK_VERSION
makes the app implicitly depend on the bootclasspath, which is
often not required. This change effectively makes depending on
private apis opt-in rather than opt-out.
Test: make relevant packages
Bug: 73535841
Change-Id: Ibcffec873a693d1c792ca210fb597d2bf37e9068
Merged-In: I4233b9091d9066c4fa69f3d24aaf367ea500f760
Test: Take systrace of open app, make sure thead is boosted while
doing stuff in WM
Test: Run WmSlam with and without boosting. Observe an
improvement.
Bug: 36631902
Change-Id: Iadb036f8d12bbf59091466500e82207cf6fa85d5