Fixing FAFT on Butterfly

BUG=chrome-os-partner:13969
TEST=FAFT passes 100% on Butterfly

Change-Id: Ic9af587bf7413f058e58713b37495e8d5676a025
Reviewed-on: https://gerrit.chromium.org/gerrit/36373
Reviewed-by: Shawn Nematbakhsh <shawnn@google.com>
Reviewed-by: Mike Truty <truty@chromium.org>
Reviewed-by: Bernie Thompson <bhthompson@chromium.org>
Reviewed-by: Tom Wai-Hong Tam <waihong@chromium.org>
Commit-Ready: Gediminas Ramanauskas <gedis@chromium.org>
Reviewed-by: Gediminas Ramanauskas <gedis@chromium.org>
Tested-by: Gediminas Ramanauskas <gedis@chromium.org>
diff --git a/server/cros/faftsequence.py b/server/cros/faftsequence.py
index c15e707..9ff1473 100644
--- a/server/cros/faftsequence.py
+++ b/server/cros/faftsequence.py
@@ -1120,7 +1120,7 @@
 
         A wrapper for underlying servo cold reset.
         """
-        if self.client_attr.platform == 'Parrot':
+        if self.client_attr.broken_warm_reset:
             self.servo.set('pwr_button', 'press')
             self.servo.set('cold_reset', 'on')
             self.servo.set('cold_reset', 'off')