Compilation fix for newer mbed-os

Fork of X_NUCLEO_IDB0XA1 by ST

Revision:
235:31b976a40f43
Parent:
231:a0d2544b38cd
Child:
241:c13c2e31316d
--- a/source/platform/btle.cpp	Thu May 26 15:34:04 2016 +0200
+++ b/source/platform/btle.cpp	Thu Jun 09 17:15:02 2016 +0200
@@ -268,7 +268,7 @@
                                                 scan_window,
                                                 scan_type,
                                                 own_address_type,
-                                                1); // 1 to filter duplicates
+                                                0); // 1 to filter duplicates
   } else {
       ret = BLE_STATUS_INVALID_CID;
   }