Allow failures of applyBatch() operations.

In some cases, the supplier of ContentProviderOperation is okay
if certain operations fail, and they'd like ContentProviderResult
to tell them about the failures instead of aborting the remainder
of the transaction.

Start using this for ModernMediaScanner, where we probably raced
with someone when building an UPSERT-style operation.  We'll
pick up any changes to those files during the next scan.

Bug: 128494336
Test: atest --test-mapping packages/providers/MediaProvider
Change-Id: Ida8230ff2bbb3bab56eb83928e49e7097bfbc9fd