Update power_profile.xml to latest D2VZW OTA (VRBMF1)

Change-Id: I9bbf39e831b5e660776bc5fbdbac21a2353a150a
d2-common: clean-up ifdefs for d2 stepbrothers

Change-Id: I18ede5ed73d7de1dade7c1129dc372bc921c8f09