Add genres to correct db based on where the audio entry is inserted.

Bug: 133422066
Test: manual
Test: atest --test-mapping packages/providers/MediaProvider
Exempt-From-Owner-Approval: owners + all 4 buildcops unresponsive
Change-Id: I0444ab62bfaa45d7696e7fc27a5e6997176fb2e1
1 file changed