media: staging: atomisp: Add videobuf2 switch to TODO

The atomisp driver uses the videobuf1 framework for buffer management. The
framework is being removed; switch to videobuf2 needs to be made. There
are only a handful of remaining non-staging drivers using videobuf1.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/staging/media/atomisp/TODO

@@ -48,6 +48,8 @@
 10. Use LED flash API for flash LED drivers such as LM3554 (which already
     has a LED class driver).
 
+11. Switch from videobuf1 to videobuf2. Videobuf1 is being removed!
+
 Limitations:
 
 1. To test the patches, you also need the ISP firmware