wireguard: Kconfig: select CRYPTO_BLAKE2S_ARM

When available, select the new implementation of BLAKE2s for 32-bit ARM.
This is faster than the generic C implementation.
Reviewed-by: NJason A. Donenfeld <Jason@zx2c4.com>
Acked-by: NArd Biesheuvel <ardb@kernel.org>
Signed-off-by: NEric Biggers <ebiggers@google.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

drivers/net/Kconfig

@@ -90,6 +90,7 @@ config WIREGUARD
 	select CRYPTO_CHACHA20_NEON if (ARM || ARM64) && KERNEL_MODE_NEON
 	select CRYPTO_POLY1305_NEON if ARM64 && KERNEL_MODE_NEON
 	select CRYPTO_POLY1305_ARM if ARM
+	select CRYPTO_BLAKE2S_ARM if ARM
 	select CRYPTO_CURVE25519_NEON if ARM && KERNEL_MODE_NEON
 	select CRYPTO_CHACHA_MIPS if CPU_MIPS32_R2
 	select CRYPTO_POLY1305_MIPS if CPU_MIPS32 || (CPU_MIPS64 && 64BIT)