Notify the FUSE filesystem for default dir updates

If a default dir is created via the MediaProvider, it bypasses the
FUSE filesystem, hence the mTime on the FUSE volume root path might
not change. This breaks some FileManages relying on mTime changes to
update their UI

Now, we manually update the mTime in such situations

Test: Manaual
Bug: 170358156
Change-Id: I1149eb68f6fc78ffc1372b678b2a23217c716d0c
Merged-In: I1149eb68f6fc78ffc1372b678b2a23217c716d0c
1 file changed