Bluetooth: msft: Clear tracked devices on resume

Clear already tracked devices on system resume. Once the monitors are
reregistered after resume, matched devices in range will be found again.

Signed-off-by: Manish Mandlik <mmandlik@google.com>
Reviewed-by: Miao-chen Chou <mcchou@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>