crypto: sha3-generic - export init/update/final routines

To allow accelerated implementations to fall back to the generic
routines, e.g., in contexts where a SIMD based implementation is
not allowed to run, expose the generic SHA3 init/update/final
routines to other modules.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/include/crypto/sha3.h b/include/crypto/sha3.h
index 1339dcd..080f60c 100644
--- a/include/crypto/sha3.h
+++ b/include/crypto/sha3.h
@@ -26,4 +26,9 @@ struct sha3_state {
 	u8		buf[SHA3_224_BLOCK_SIZE];
 };
 
+int crypto_sha3_init(struct shash_desc *desc);
+int crypto_sha3_update(struct shash_desc *desc, const u8 *data,
+		       unsigned int len);
+int crypto_sha3_final(struct shash_desc *desc, u8 *out);
+
 #endif