utils/ssh: fix Gem5Connection.pull

Gem5Connection lists the path to be pulled, however it was not stripping
ANSI escape sequences from resulting output, which would corrupt the
path.

devlib/utils/ssh.py

@@ -444,7 +444,7 @@ class Gem5Connection(TelnetConnection):
         self._check_ready()
 
         result = self._gem5_shell("ls {}".format(source))
-        files = result.split()
+        files = strip_bash_colors(result).split()
 
         for filename in files:
             dest_file = os.path.basename(filename)