Remove / annotate @CorePlatformApi(LEGACY) APIs in Android S as STABLE and as @SystemApi(MODULE_LIBRARIES)

Bug: 157639992
Bug: 154796679
Test: m update-api
Merged-In: I3b085afa9e1d1c843428fb141be35b871d320957
Change-Id: I3b085afa9e1d1c843428fb141be35b871d320957
(cherry picked from commit e965ca152f660c1bf563b482a7e2e1cf1385ed54)
13 files changed