QLowEnergyController - auto test (OS X/iOS)

Ajust the test to make it also work with Core Bluetooth:
with Core Bluetooth we do not have device address, we have only
uuids (Apple's unique NSUUIDs generated for LE peripherals),
this patch mainly addresses this issue - controller has to be
created with LE device info, not QBluetoothAddress.

Change-Id: I236cd55bfc41a8333fce663fb3b780ee219f8cec
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>