Add Ble test cases to BuildCtsTemporarilyKnownFailureList.

Bug:b/20224949
Change-Id: Id9816cc7f50a7fd4cd348961dc1c20bff6386e7e
diff --git a/tools/utils/buildCts.py b/tools/utils/buildCts.py
index e7a2f3c..0531c49 100755
--- a/tools/utils/buildCts.py
+++ b/tools/utils/buildCts.py
@@ -503,6 +503,11 @@
           'android.content.cts.ContentResolverTest#testUnstableToStableRefs',
           'android.content.cts.ContentResolverTest#testUpdate',
           'android.content.cts.ContentResolverTest#testValidateSyncExtrasBundle',],
+      'android.bluetooth' : [
+          'android.bluetooth.cts.BluetoothLeScanTest#testBasicBleScan',
+          'android.bluetooth.cts.BluetoothLeScanTest#testBatchScan',
+          'android.bluetooth.cts.BluetoothLeScanTest#testOpportunisticScan',
+          'android.bluetooth.cts.BluetoothLeScanTest#testScanFilter',],
       '' : []}
 
 def LogGenerateDescription(name):