Rename PSA_ALG_HMAC_HASH to PSA_ALG_HMAC_GET_HASH

Be consistent with other GET_HASH macros.
diff --git a/library/psa_crypto.c b/library/psa_crypto.c
index 66a6feb..91c14bb 100644
--- a/library/psa_crypto.c
+++ b/library/psa_crypto.c
@@ -1549,7 +1549,7 @@
 #if defined(MBEDTLS_MD_C)
     if( PSA_ALG_IS_HMAC( alg ) )
     {
-        psa_algorithm_t hash_alg = PSA_ALG_HMAC_HASH( alg );
+        psa_algorithm_t hash_alg = PSA_ALG_HMAC_GET_HASH( alg );
         if( hash_alg == 0 )
         {
             status = PSA_ERROR_NOT_SUPPORTED;
@@ -3253,7 +3253,7 @@
     psa_status_t status;
     status = psa_hmac_setup_internal( &hkdf->hmac,
                                       salt, salt_length,
-                                      PSA_ALG_HMAC_HASH( hash_alg ) );
+                                      PSA_ALG_HMAC_GET_HASH( hash_alg ) );
     if( status != PSA_SUCCESS )
         return( status );
     status = psa_hash_update( &hkdf->hmac.hash_ctx,