Update font family for setting wallpaper dialog

Screenshots
  Before: https://screenshot.googleplex.com/68kE9gmdL6BDdi8.png
  After: https://screenshot.googleplex.com/5Ld2ZukmnJ4HNea.png

Bug: 188492647
Test: manual
Change-Id: Ibb54d8891f2bf5990c1bad1bfb9eedf25dcb7b5d
1 file changed