Fixed a property naming mismatch.

Device configuration properties in ZygoteConfig.java used old names for
certain values.  These name strings have been updated to the correct
values and additional logging has been added to help catch future
issues.

Test: m
Test: boot and check log for USAP messages
Change-Id: I2fb92afe7edd9b1254dd3be659ec5063aa0b8e16