configs: Updates for python3

Change-Id: Iab2f83716ea2cb19f06282f037314f2db843327a
Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/29047
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>

configs/example/arm/devices.py

@@ -38,12 +38,17 @@
 from __future__ import print_function
 from __future__ import absolute_import
 
+import six
+
 import m5
 from m5.objects import *
 m5.util.addToPath('../../')
 from common.Caches import *
 from common import ObjectList
 
+if six.PY3:
+    long = int
+
 have_kvm = "ArmV8KvmCPU" in ObjectList.cpu_list.get_names()
 have_fastmodel = "FastModelCortexA76" in ObjectList.cpu_list.get_names()