Added one more common to power.h. Workflow: Stashed initial work on this from el-net1, checked out power_h branch, finished work (including test compile).

After commit: Run full tester.pl
Merge branch 'power_h' into el-net1

* power_h:
  Added one more common to power.h. Workflow: Stashed initial work on this from el-net1, checked out power_h branch, finished work (including test compile).