Fix cambus read/write-w register width.
Fix cambus read/write-w register width.

kwagyeman/openmv,iabdalkader/openmv,iabdalkader/openmv,openmv/openmv,iabdalkader/openmv,kwagyeman/openmv,kwagyeman/openmv,openmv/openmv,openmv/openmv,openmv/openmv,iabdalkader/openmv,kwagyeman/openmv