work around pylint issue

Author: dhalbert

examples/ble_heart_rate_simpletest.py

@@ -10,7 +10,8 @@
 from adafruit_ble.services.standard.device_info import DeviceInfoService
 from adafruit_ble_heart_rate import HeartRateService
 
-ble = BLERadio()
+# PyLint can't find BLERadio for some reason so special case it here.
+radio = BLERadio() # pylint: disable=no-member
 
 hr_connection = None
 # Start with a fresh connection.