IQ2_K quantization works

Author: Nexesenex

ggml/src/ggml.c

@@ -1397,7 +1397,7 @@ static const struct ggml_type_traits type_traits[GGML_TYPE_COUNT] = {
         // .vec_dot                  = vec_dot_iq2_k_q8_k,
         // .vec_dot_type             = GGML_TYPE_Q8_K,
         // .nrows                    = 1,
-        .row_meta_size            = 2,
+        .row_meta_size            = 0,
     },
     [GGML_TYPE_IQ2_K_R4] = {
         .type_name                = "iq2_k_r4",