Set pfq alex as master on R15
diff --git a/buildbot/cbuildbot_config.py b/buildbot/cbuildbot_config.py
index 5ade858..723991b 100644
--- a/buildbot/cbuildbot_config.py
+++ b/buildbot/cbuildbot_config.py
@@ -520,7 +520,7 @@
 
 add_config('x86-alex-pre-flight-branch', [internal, {
   'board' : 'x86-alex',
-  'master' : False,
+  'master' : True,
 
   'uprev' : True,
   'overlays': 'both',