Finish the new data receiver when update fails

The thread to receive new data may still be alive after we exit
PerformBlockImageUpdate() upon failures. This caused memory corruption
when we run the unittest repeatedly. Set the receiver_available flag
to false and make sure the receiver exits when the update fails.

Bug: 65430057
Test: unittests passed with tsan
Change-Id: Icb232d13fb96c78262249ffbd29cdbe5b77f1fce