Some Android systems may not have certain system services (particularly the VirtualMachineManager). If this is the case, disable the preference rather than requiring the service and crashing the Settings app.
Bug: 388221800
Change-Id: I761054caebe3e846f5c6c76e2818662aad2cb511
Test: manual
Flag: NONE bugfix
Bug: 374034911
Test: atest, plus following manual test \
- Test tabbed UI with/without work profile \
- Test that disabled by work profile launches alert dialog \
- Test whether toggling an app only toggle the app for the user.
Flag: Build.RELEASE_AVF_SUPPORT_CUSTOM_VM_WITH_PARAVIRTUALIZED_DEVICES
Change-Id: I4bf0a2d521cf3e632f6c0320e0b5cc0154d5b68f
