CRYPTO_DH is automatically set if KEY_DH_OPERATIONS is set, so there is
no need to mention it. CRYPTO_LIB_CHACHA20POLY1305 is needed to be y
or BIG_KEYS won't show up.
I guess Ken forgot a "git add" here :).
And the entry for NAMESPACES should be "-*-", not "[*]". It's because
we assume everyone is not setting EXPERT.
It's almost a plain "conversion". Exceptions:
- In elogind, [CGROUPS] is dropped because it's in LFS now.
- In libusb, move the kernel configuration to match the layout of other
packages.