Fix BLE Peripheral is not advertising

Add a delay after register the profile.

Author: sgbihu

libraries/CurieBLE/src/BLEPeripheralRole.cpp

@@ -66,7 +66,7 @@ bool BLEPeripheralRole::begin()
     setDeviceName();
     // Register profile
     _peripheral.registerProfile();
-    delay(2); // Temp solution for send data fast will makes ADV data set failed
+    delay(4); // Temp solution for send data fast will makes ADV data set failed
     return true;
 }