Add a specific error code for provider mismatches

If the device used HAL based RoR to arm the escrow key, the recovery
will fail if we switch to server based RoR after reboot. Set a
specific error for metrics purpose.

Bug: 183140900
Test: atest FrameworksServicesTests:RebootEscrowManagerTests
Change-Id: I1f33a8c6cf111d868a2b96a155f5a0926a7c788a