Simplify the kconfig entry for WIREGUARD:
- Drop the selections of the arch-optimized ChaCha20, Poly1305, BLAKE2s,
and Curve25519 code. These options no longer exist, as lib/crypto/
now enables the arch-optimized code automatically.
- Drop the selection of CRYPTO. This was needed only to make the
arch-optimized options visible. lib/crypto/ now handles these options
internally, without any dependency on CRYPTO.
- Drop the dependency on !KMSAN. This was needed only to avoid
selecting arch-optimized code that isn't compatible with KMSAN.
lib/crypto/ now handles the !KMSAN dependencies internally.
- Add a selection of CRYPTO_LIB_UTILS, since WireGuard directly calls
crypto_memneq(). This gets selected indirectly by
CRYPTO_LIB_CURVE25519 and CRYPTO_LIB_CHACHA20POLY1305 anyway, but it's
best to make this dependency explicit.
Link: https://lore.kernel.org/r/20250906213523.84915-13-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
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