Scan items when changing their paths.

Some metadata fields (such as audio title) can be derived from the
path, so when the path is changed, request that the file be scanned
to update those fields.

Bug: 119536707
Test: atest --test-mapping packages/providers/MediaProvider
Change-Id: I86db01ac616ee3a1f735f0dc98feb50fc38630a9
1 file changed