create-sets.sh: Always build the base sets

Since all packages were moved to the optional set, no packages are
directly in the base sets, which means nothing caused the base sets
to be built. Add the base sets to create-sets.sh so they're always
built.

Fixes: eaecc9551ae4 ("packages: Add an "optional" set")
MFC after: 1 day

(cherry picked from commit a087b4aec38c37d47b888aa8411948250cdd4bc0)