Make exoplayer2.15.1-core visible to MediaProvider

Bug: 199522401
Test: m exoplayer2.15.1-core
Change-Id: I05dc15d4022ae154e49579f94c0463ec27e1fa79
Merged-In: I05dc15d4022ae154e49579f94c0463ec27e1fa79
(cherry picked from commit 0371f27584fee066f5a94709f14ad339dc8cc951)
2 files changed