Giving Parrot a little bit of time to process rec_mode request

BUG=chrome-os-partner:18469
TEST=firmware_FAFTSetup passes reliably

Change-Id: I403213653a766d55e8fa8dc7bd350bf0f1ae9b66
Reviewed-on: https://gerrit.chromium.org/gerrit/49278
Reviewed-by: Yusuf Mohsinally <mohsinally@chromium.org>
Reviewed-by: Mohammed Habibulla <moch@chromium.org>
Reviewed-by: Todd Broch <tbroch@chromium.org>
Commit-Queue: Gediminas Ramanauskas <gedis@chromium.org>
Tested-by: Gediminas Ramanauskas <gedis@chromium.org>
diff --git a/servo/drv/parrot_ec.py b/servo/drv/parrot_ec.py
index 9d2dabf..f356d8b 100644
--- a/servo/drv/parrot_ec.py
+++ b/servo/drv/parrot_ec.py
@@ -8,6 +8,7 @@
 """
 import os
 import pty_driver
+import time
 
 class parrotEcError(Exception):
   """Exception class for parrot ec."""
@@ -56,6 +57,9 @@
       self._issue_cmd("fbf5=00")
       self._issue_cmd("fbf6=00")
 
+    # Giving Parrot a little bit of time to process the commands
+    time.sleep(0.1)
+
   def _Get_rec_mode(self):
     """Getter of rec_mode.