Allow credstore to call into KeyAttestationApplicationIdProviderService

This was previously reserved for keystore only but since credstore
also needs to do attestations, this is needed.

Bug: 111446262
Test: atest android.security.identity.cts
Test: Manually verifying the AttestationApplicationId from credstore
Change-Id: Ie44f9e4c8f2e1bd916ccbe7c7e5537dc498d8154