Create separate groups for NetworkRequests with different enterprise IDs

When multiple enterprise slices are created, they will have the same
capabilities but a different enterprise ID/capability differentiator.
When grouping network requests by capability, separate enterprise
requests with different IDs into separate groups so separate slices
aren't grouped together.

Test: atest DataUtilsTest
Bug: 237818874
Change-Id: I28c36520cd5129f1e067b6dc3de50a235b2869c6