Swap aebl/kaen preflight

Companion change for https://chromereviews.googleplex.com/3771015.

BUG=chrome-os-partner:6940
TEST=None

Change-Id: Ia9fcd6753dedd29947f0a0f11cbc7fea208d50d0
Reviewed-on: https://gerrit.chromium.org/gerrit/12477
Reviewed-by: David McMahon <djmm@chromium.org>
Tested-by: David McMahon <djmm@chromium.org>
diff --git a/buildbot/cbuildbot_config.py b/buildbot/cbuildbot_config.py
index 4574a74..e6228ae 100644
--- a/buildbot/cbuildbot_config.py
+++ b/buildbot/cbuildbot_config.py
@@ -489,8 +489,8 @@
   'usepkg_build_packages' : False,
 }])
 
-add_config('tegra2_aebl-pre-flight-branch', [internal, {
-  'board' : 'tegra2_aebl',
+add_config('tegra2_kaen-pre-flight-branch', [internal, {
+  'board' : 'tegra2_kaen',
   'master' : True,
 
   'uprev' : True,