n setup or not and if it was setup skip
                        initializing GIC again and just register handlers.
 1.6   sd   28/02/21    Add support for microblaze
       kpt  03/16/21    Fixed compilation warning on microblaze
 1.7   sd   01/04/22    Replace memset with Xil_SMemSet
 1.8   ana  05/02/23      Updated XIpiPs_PollforDone logic to improve
                                                  AES client performance
         ht   05/30/23    Added support for system device-tree flow.
         ht   