Fix crash and hide Custom button

Will show Custom button and default to Custom select when the feature is
fully functional.

Bug: 124786795
Fixes: 126392573
Test: change theme in dev settings; ensure wallpaper app start
Change-Id: I84a2e6725beea94f7c9735d45e6fc07e4cc64a63
2 files changed
tree: 878f21683ab16a25f6a586ef43064f1462bfd5ee
  1. res/
  2. robolectric_tests/
  3. src/
  4. src_override/
  5. Android.mk
  6. AndroidManifest.xml