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00a7ac013c
This fixes spuriously occuring mag spikes in the external mag of Here2. The reason for the spikes was that the fact that the I2C registers were not read out correctly as suggested in the datasheet. Before we were reading out ST1, data, and ST2 in one pass and ignoring the data ready bit (DRDY) in ST1. This meant that we could run into race conditions where the data was not ready when we started reading and being updated as the registers are read. Instead, we need to check the read the ST1 register first to check the data ready bit and then read the data and ST2 if the data is ready. By reading ST2 we then trigger the next measurement in the chip.