Correct 16mA/LSB to 24mA/LSB in readCurrent

[benfrussell]

Following the datasheet for the AP33772 found here it looks like readCurrent should be returning 24 mA per LSB, not 16.

Please correct me if I've missed something :)

[CentyLab]

Hi @benfrussell, let us test again with 24 LBS. We have noticed that on the datasheet at the time we create the library. However, the reported value was not accurate and 16 was the recalibration number.
It was a quick patch but we will need to investigate again now since we had more experience with the AP33772 line up.

[benfrussell]

I would be curious about whether the calibration is consistent between chips, and whether it is more or less accurate at certain current ranges. It's a shame the datasheet doesn't offer more info.

For what is worth, according to the AP33772 @ 24 LBS, my PicoPD seems to be drawing a little high for a Pico-type device (72mA).