tests/ci: style: canonicalize, sort, and multiline kmods/pkgs

This helps to remove ambiguity and reduce future diffs of changes
to the VM_EXTRA_PACKAGES list. Also sort kld_list.

Signed-off-by: Siva Mahadevan <me@svmhdvn.name>
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D51308