Separate privapp grant for settings.intelligence

This app is moving to /product, so split it out of the grant
file on /system. For now, make it required by the /system file.
As part of moving the an app to /product, the grant file will
be made required by the app itself.

Bug: 122353713
Test: make
Change-Id: I994137279b2c25938fd9967027f606a88bb39468