configs: Initialize atags_addr in baremetal.py

Change-Id: Iec797d4be607526d68a2813e188a32759418dbcc
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/27023
Tested-by: Gem5 Cloud Project GCB service account <345032938727@cloudbuild.gserviceaccount.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Ciro Santilli <ciro.santilli@arm.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>

configs/example/arm/baremetal.py

@@ -99,6 +99,7 @@ def create(args):
                                   platform=VExpress_GEM5_V2(),
                                   mem_mode=mem_mode,
                                   workload=ArmFsWorkload(
+                                      atags_addr=0,
                                       object_file=args.kernel),
                                   readfile=args.readfile)