Dedupe credential options

There is inconsistency in how credential providers process credential
options and returns credential responses. Some providers return entries
for each option while some providers return entries for deduped options.
This results in inconsitent output to users.

To solve this, dedupe credential options in CredentialAutofillService,
and track which autofill ids requested which credential option. Then
make a single credential request with deduped options and when it
receives the entries, duplicate them for each autofill id that requested
the credential option.

Test: atest CtsAutoFillServiceTestCases:android.autofillservice.cts.inline.InlineLoginMixedCredentialActivityTest
Bug: 324126795
Change-Id: Ie236676a756a0bbabca37965a72cd65e25b2065a