RHSM register fails with "No cpu socket information found"

Issue

• RHSM register fails on physical system with the following messages:

2013-11-05 15:55:55,123 [DEBUG]  @hwprobe.py:443 - No cpu socket information found
2013-10-05 15:55:55,123 [DEBUG]  @hwprobe.py:465 - No cpu socket info found for real or virtual hardware
2013-10-05 15:55:55,123 [DEBUG]  @hwprobe.py:518 - cpu info: {'cpu.cpu(s)': 16, 'cpu.core(s)_per_socket': 1, 'cpu.thread(s)_per_core': 1, 'cpu.topology_source': 'fallback one socket', 'cpu.cpu_socket(s)': 16}