Rearchitect video driver:
- Define two video I/F(struct imgsensor_ops_s and struct imgdata_ops_s),
and support them.
- CISIF driver supports new video I/F struct imgdata_ops_s.
- ISX012 driver supports new video I/F struct imgsensor_ops_s.
- Move ISX012 driver to general driver directory.
This sensor driver needs rework to match the needed layout for standar NuttX driver.
In the meantime it is moved to board specific sensors to fix the violation.
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>