5433cd4070
Since authenticatorIds are collected from AuthService, which is
system_server, we need to get the callingUserId before the code
enters system_server, which clears calling identity.
Test: 1) Set up work profile, install BiometricPromptDemo
2) Enroll work profile fingerprint
3) Open work profile version of BiometricPromptDemo
4) Create biometric-bound keys and authenticate with fingerprint
Before this change, key was unusable. After this change,
the key can be used
Fixes: 157486161
Change-Id: I4ec89b9cb13caff397b1a1acd844962736290040
Merged-In: I4ec89b9cb13caff397b1a1acd844962736290040