Fix mul_mat_moe and fused_up_gate

Author: Iwan Kawrakow

ggml/src/iqk/iqk_mul_mat.cpp

@@ -612,9 +612,7 @@ extern "C" IQK_API bool iqk_mul_mat_moe(long Nx, long Ny, long ne00, int ne11,
         first_x *= num_rows;
         nrc_x   *= num_rows;
 
-        auto type_size = ggml_type_size(dequant_type);
-
-        size_t row_size_qx = ne00*type_size;
+        size_t row_size_qx = ggml_row_size(dequant_type, ne00);
         size_t row_size_qy = strideB;
 
         DataInfo info{C + first_x, (const char *)B, nb1/sizeof(float), row_size_qy, 0, ne11, row_mapping, nb2/sizeof(float)};
@@ -680,9 +678,7 @@ extern "C" IQK_API bool iqk_moe_fused_up_gate(long Nx, long Ny, long ne00, int n
         first_x *= num_rows;
         nrc_x   *= num_rows;
 
-        auto type_size = ggml_type_size(dequant_type);
-
-        size_t row_size_qx = ne00*type_size;
+        size_t row_size_qx = ggml_row_size(dequant_type, ne00);
         size_t row_size_qy = strideB;
 
         DataInfo info{C + first_x, (const char *)B, nb1/sizeof(float), row_size_qy, 0, ne11, row_mapping, nb2/sizeof(float)};