RebootEscrowManager: service-specific exceptions

Instead of crashing when encountering a service-specific exception, log
the error and continue operation. This will allow vendors to indicate
their HAL is not working when a call comes in without crashing the
system_server thread.

Bug: 158774347
Test: atest RebootEscrowManagerTests
Change-Id: Ieb68e8a63d91a99aa73570e2c76c0b329449fd3b
2 files changed