Code_coverage: condition RTL with the AxiBurstWriteEn parameter

Created by: AEzzejjari

Add AxiBurstWriteEn parameter to the CVA6 configuration and set it to 0 as the CVA6 does not support bursts with a length greater than 0.

Condition RTL with AxiBurstWriteEn parameter to identify the dead code and remove the dead gates from netlist.

Based on if() directives, VCS is able to identify the unused code, this will allow to improve code coverage