ref/services/agent: Change errorf logs to infof since we currently do not act on this errors.
ref/services/agent: Change errorf logs to infof since we currently
do not act on this errors.

Change-Id: I1e03a4a2c694261311410a513ef1c6c11047043f

vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref,vanadium/go.ref