DO NOT MERGE Bump up the max persisted uri grants

With scoped storage, more apps will need to rely on
SAF to get access to non-media files. Allow more grants
by bumping up the limit to 512.

BUG: 149370983
Test: m

Change-Id: I26ae0ff660ecfb846a06fca00de7c1ad41ace2b2
1 file changed