classify: use AVX-512 to calculate hash on x86

Type:improvement
Change-Id: I9f9f16eabf64203db11cd4338948d76ca5e0ef12
Signed-off-by: Damjan Marion <damarion@cisco.com>
diff --git a/src/vnet/classify/vnet_classify.c b/src/vnet/classify/vnet_classify.c
index 7962507..0b819db 100644
--- a/src/vnet/classify/vnet_classify.c
+++ b/src/vnet/classify/vnet_classify.c
@@ -148,6 +148,7 @@
   t->match_n_vectors = match_n_vectors;
   t->skip_n_vectors = skip_n_vectors;
   t->entries_per_page = 2;
+  t->load_mask = pow2_mask (match_n_vectors * 2);
 
   t->mheap = clib_mem_create_heap (0, memory_size, 1 /* locked */ ,
 				   "classify");