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I2C burst write for nRF5340 fails

I2C burst write for nRF5340 at 100kHz is failing with a reply of -5.   (Trying to use the BMI270 drivers sample, it will fail during reg_write of the configuration file)

Reading works. with nRF5340. I can read the Chip ID correctly. 

Same code on nRF52480 works perfectly. (Read and write). 

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