Reorder permissions in android manifest

Samsung and possibly other OEMs use the order that
the permission appears in the manifest to determine
what order the permissions are requested. Move contacts
permissions to the top so we always show that request first.

Test: Manual
  - revoke permission on samsung s7 and nexus 5x and see that
    contacts permission is requested first noi

Bug:30576744
Change-Id: I52b1c29527e4048558f381a3e0c5e1f023858caa