Update location app stats

- Count apps in both primary and work profiles
- Show the number of any location permitted app instead of background
  allowed apps on Location settings page
- Update the text at the top-level settings page

Bug: 129296799
Bug: 129358133
Bug: 129358508
Bug: 131432116
Test: build, flash, and test manually
Change-Id: I1a4284257a8a284140b81685efc98a2cc4a74619