dma_controller: fix swapped bits in attributes.

hdl/rtl/dma_controller.vhd

@@ -367,8 +367,8 @@ begin
               dma_len_reg            <= next_item_len_i;
               dma_nextl_reg          <= next_item_next_l_i;
               dma_nexth_reg          <= next_item_next_h_i;
-              dma_attrib_chain_reg   <= next_item_attrib_i(0);
-              dma_attrib_dir_reg     <= next_item_attrib_i(1);
+              dma_attrib_chain_reg   <= next_item_attrib_i(1);
+              dma_attrib_dir_reg     <= next_item_attrib_i(0);
               -- Next item received
               dma_ctrl_current_state <= DMA_START_TRANSFER;
             end if;