cpu-o3: test bank confict use new 1 bit shift

Change-Id: I608a50da30297fbc90de925374de5b34c2bdbf9d

Author: jensen-yan

src/cpu/pred/BranchPredictor.py

@@ -1057,7 +1057,7 @@ class BTBTAGE(TimedBaseBTBPredictor):
     useAltOnNaSize = Param.Unsigned(128, "Size of the useAltOnNa table")
     useAltOnNaWidth = Param.Unsigned(7, "Width of the useAltOnNa table")
     numBanks = Param.Unsigned(4, "Number of banks for bank conflict simulation")
-    enableBankConflict = Param.Bool(False, "Enable bank conflict simulation")
+    enableBankConflict = Param.Bool(True, "Enable bank conflict simulation")
     numDelay = 2
 
 class MicroTAGE(BTBTAGE):