PiCowbell Adalogger CircuitPython example need updating for PCF8523

[caternuson]

Re this thread: https://forums.adafruit.com/viewtopic.php?t=205469

These examples: https://github.com/adafruit/Adafruit_Learning_System_Guides/tree/main/PiCowbell_Adalogger_Examples

Looks like the layout for the CircuitPython PCF8523 library changed, so the import syntax needs updating.