crypto: ensure qcrypto_hash_digest_len is always defined

The qcrypto_hash_digest_len method was accidentally inside
a CONFIG_GNUTLS_HASH block, even though it doesn't depend
on gnutls. Re-arrange it to be unconditionally defined.

Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>

crypto/hash.c

@@ -24,12 +24,8 @@
 #ifdef CONFIG_GNUTLS_HASH
 #include <gnutls/gnutls.h>
 #include <gnutls/crypto.h>
+#endif
 
-static int qcrypto_hash_alg_map[QCRYPTO_HASH_ALG__MAX] = {
-    [QCRYPTO_HASH_ALG_MD5] = GNUTLS_DIG_MD5,
-    [QCRYPTO_HASH_ALG_SHA1] = GNUTLS_DIG_SHA1,
-    [QCRYPTO_HASH_ALG_SHA256] = GNUTLS_DIG_SHA256,
-};
 
 static size_t qcrypto_hash_alg_size[QCRYPTO_HASH_ALG__MAX] = {
     [QCRYPTO_HASH_ALG_MD5] = 16,
@@ -37,14 +33,6 @@ static size_t qcrypto_hash_alg_size[QCRYPTO_HASH_ALG__MAX] = {
     [QCRYPTO_HASH_ALG_SHA256] = 32,
 };
 
-gboolean qcrypto_hash_supports(QCryptoHashAlgorithm alg)
-{
-    if (alg < G_N_ELEMENTS(qcrypto_hash_alg_map)) {
-        return true;
-    }
-    return false;
-}
-
 size_t qcrypto_hash_digest_len(QCryptoHashAlgorithm alg)
 {
     if (alg >= G_N_ELEMENTS(qcrypto_hash_alg_size)) {
@@ -54,6 +42,22 @@ size_t qcrypto_hash_digest_len(QCryptoHashAlgorithm alg)
 }
 
 
+#ifdef CONFIG_GNUTLS_HASH
+static int qcrypto_hash_alg_map[QCRYPTO_HASH_ALG__MAX] = {
+    [QCRYPTO_HASH_ALG_MD5] = GNUTLS_DIG_MD5,
+    [QCRYPTO_HASH_ALG_SHA1] = GNUTLS_DIG_SHA1,
+    [QCRYPTO_HASH_ALG_SHA256] = GNUTLS_DIG_SHA256,
+};
+
+gboolean qcrypto_hash_supports(QCryptoHashAlgorithm alg)
+{
+    if (alg < G_N_ELEMENTS(qcrypto_hash_alg_map)) {
+        return true;
+    }
+    return false;
+}
+
+
 int qcrypto_hash_bytesv(QCryptoHashAlgorithm alg,
                         const struct iovec *iov,
                         size_t niov,