axi_adapter/shim: no need to have the fixed burst type
Created by: LucaZulberti
The AXI transactions can be regular as stated in AXI specification section A3.4.3.
It seems there is no need to perform FIXED transactions, am I wrong? This patch makes the CPU compliant also with AXI Regular Transactions. For example, now it is compatible with the AXI SmartConnect IP of Vivado.
I have created a draft PR since I have not tested this patch a lot. Do you have any concerns about this change?