config: Switch from the print statement to the print function.

Change-Id: I701fa58cfcfa2767ce9ad24da314a053889878d0
Reviewed-on: https://gem5-review.googlesource.com/8762
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Gabe Black <gabeblack@google.com>

configs/common/cores/arm/HPI.py

@@ -45,6 +45,8 @@ at: http://www.arm.com/ResearchEnablement/SystemModeling
 
 """
 
+from __future__ import print_function
+
 from m5.objects import *
 
 # Simple function to allow a string of [01x_] to be converted into a
@@ -71,7 +73,7 @@ def make_implicant(implicant_string):
         elif char == 'x':
             pass
         else:
-            print "Can't parse implicant character", char
+            print("Can't parse implicant character", char)
 
     return (ret_mask, ret_match)
 
@@ -133,7 +135,7 @@ def ref(name):
             ret = TimingExprRef()
             ret.index = env[name]
         else:
-            print "Invalid expression name", name
+            print("Invalid expression name", name)
             ret = TimingExprNull()
         return ret
     return body