Migrate IS_PRIVATE from Q database to R

Bug: 170653368
Test: atest packages/providers/MediaProvider
Merged-In: I86bdea2b8589a4c5ee11eaf73ae7aecd2a55d96a
Change-Id: I86bdea2b8589a4c5ee11eaf73ae7aecd2a55d96a
1 file changed