Build qcom power hal

Change-Id: I3a3ec3d9cf201036ba99ab6d0cfa4fe6f3c26bcf
overlay: Enable config_dontPreferApn true
This fixes the issue with prepaid ATT sims not falling over to
correct apn.

Change-Id: I761f8ae0197b9cf64c8166ea520aeaa401525125