Add atomic sections to SCCB/I2C read/write
Add atomic sections to SCCB/I2C read/write

openmv/openmv,kwagyeman/openmv,SmartArduino/openmv,SmartArduino/openmv,SmartArduino/openmv,tianzhihen/openmv,iabdalkader/openmv,tianzhihen/openmv,openmv/openmv,openmv/openmv,kwagyeman/openmv,openmv/openmv,iabdalkader/openmv,kwagyeman/openmv,iabdalkader/openmv,tianzhihen/openmv,kwagyeman/openmv,tianzhihen/openmv,iabdalkader/openmv,SmartArduino/openmv