cpu-o3: reduce FTQ size to 128

Change-Id: I450b7d8f9c691dd8befadd432fb596f578234365

Author: Yakkhini

configs/example/kmhv3.py

@@ -92,8 +92,8 @@ def setKmhV3Params(args, system):
 
         # branch predictor
         if args.bp_type == 'DecoupledBPUWithBTB':
-            cpu.branchPred.ftq_size = 256
-            cpu.branchPred.fsq_size = 256
+            cpu.branchPred.ftq_size = 128
+            cpu.branchPred.fsq_size = 128
 
             cpu.branchPred.mbtb.resolvedUpdate = True
             cpu.branchPred.tage.resolvedUpdate = True