media: imx355: Define the exposure offset, and use that define

The difference between frame length and max exposure time in
lines is 10. That had been used as a bare value in calculations.

Move it to a define, and use that define.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
This commit is contained in:
Dave Stevenson 2026-07-15 12:43:29 +01:00 • committed by Sakari Ailus
commit f31cb77bb1