Add constants for settings pages
Add constants for settings pages

Some settings pages weren't extending SettingsPreferenceFragment
and they need to.

Bug: 28634520
Change-Id: Iebb63027b6390974eb2070b3388763d49e9529e6

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base