Add missing dependencies

Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index 2b7f447..39daaf7 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -6512,10 +6512,10 @@
                            unsigned char *dstbuf, size_t dlen );
 static tls_prf_fn ssl_tls12prf_from_cs( int ciphersuite_id )
 {
-#if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
     const mbedtls_ssl_ciphersuite_t * const ciphersuite_info =
          mbedtls_ssl_ciphersuite_from_id( ciphersuite_id );
 
+    #if defined(MBEDTLS_SHA512_C) && !defined(MBEDTLS_SHA512_NO_SHA384)
     if( ciphersuite_info->mac == MBEDTLS_MD_SHA384 )
         return( tls_prf_sha384 );
     else
diff --git a/programs/test/benchmark.c b/programs/test/benchmark.c
index 8b46c61..44e9a58 100644
--- a/programs/test/benchmark.c
+++ b/programs/test/benchmark.c
@@ -737,7 +737,8 @@
     }
 #endif
 
-#if defined(MBEDTLS_HMAC_DRBG_C)
+#if defined(MBEDTLS_HMAC_DRBG_C) && \
+    ( defined(MBEDTLS_SHA1_C) || defined(MBEDTLS_SHA256_C) )
     if( todo.hmac_drbg )
     {
         mbedtls_hmac_drbg_context hmac_drbg;
@@ -780,7 +781,7 @@
 #endif
         mbedtls_hmac_drbg_free( &hmac_drbg );
     }
-#endif
+#endif /* MBEDTLS_HMAC_DRBG_C && ( MBEDTLS_SHA1_C || MBEDTLS_SHA256_C ) */
 
 #if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_GENPRIME)
     if( todo.rsa )