configs: Add O3 option in starter_fs.py and ruby_fs.py

Change-Id: I2d59d15cb8acdd7b2675653335af879e35b0d6b3
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Ciro Santilli <ciro.santilli@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/57273
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Richard Cooper <richard.cooper@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>

configs/example/arm/ruby_fs.py

@@ -46,7 +46,7 @@ from common import MemConfig
 from common import ObjectList
 from common import Options
 from common import SysPaths
-from common.cores.arm import HPI
+from common.cores.arm import O3_ARM_v7a, HPI
 from ruby import Ruby
 
 import devices
@@ -62,6 +62,7 @@ cpu_types = {
     "noncaching" : NonCachingSimpleCPU,
     "minor" : MinorCPU,
     "hpi" : HPI.HPI,
+    "o3" : O3_ARM_v7a.O3_ARM_v7a_3,
 }
 
 def create_cow_image(name):