kernel: Add missing kernel config options

These two options are missing when building the x86 target.

Signed-off-by: Hauke Mehrtens <[email protected]>

target/linux/generic/config-5.4

@@ -969,6 +969,7 @@ CONFIG_CRYPTO_ALGAPI2=y
 # CONFIG_CRYPTO_ARC4 is not set
 # CONFIG_CRYPTO_AUTHENC is not set
 # CONFIG_CRYPTO_BLAKE2S is not set
+# CONFIG_CRYPTO_BLAKE2S_X86 is not set
 CONFIG_CRYPTO_BLKCIPHER=y
 CONFIG_CRYPTO_BLKCIPHER2=y
 # CONFIG_CRYPTO_BLOWFISH is not set
@@ -993,6 +994,7 @@ CONFIG_CRYPTO_BLKCIPHER2=y
 # CONFIG_CRYPTO_CTS is not set
 # CONFIG_CRYPTO_CURVE25519 is not set
 # CONFIG_CRYPTO_CURVE25519_NEON is not set
+# CONFIG_CRYPTO_CURVE25519_X86 is not set
 # CONFIG_CRYPTO_DEFLATE is not set
 # CONFIG_CRYPTO_DES is not set
 # CONFIG_CRYPTO_DEV_ATMEL_AES is not set