Clone digest prototypes.

fips/fips.h

diff --git a/fips/fips.h b/fips/fips.h
index a93233b..816eb0d 100644
--- a/fips/fips.h
+++ b/fips/fips.h
@@ -231,6 +231,9 @@
 const EVP_MD *FIPS_evp_sha256(void);
 const EVP_MD *FIPS_evp_sha384(void);
 const EVP_MD *FIPS_evp_sha512(void);
+const EVP_MD *FIPS_evp_dss1(void);
+const EVP_MD *FIPS_evp_dss(void);
+const EVP_MD *FIPS_evp_ecdsa(void);
 
 #endif