scons: Move Transform and termcap functionality into their own files.

Change-Id: Ica08e93f3873a7eafd02fe7d44c3bdbf0ce7f6b7
Reviewed-on: https://gem5-review.googlesource.com/5565
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>

src/mem/protocol/SConscript

@@ -36,6 +36,8 @@ from os.path import isdir, isfile, join as joinpath
 
 from SCons.Scanner import Classic
 
+from gem5_scons import Transform
+
 Import('*')
 
 if env['PROTOCOL'] == 'None':