sensors: Fix GC2145 window subsampling ratio.
sensors: Fix GC2145 window subsampling ratio.

* Fixes #1570

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