staging/sm750fb: Add "port to atomic kms" to TODO

fbdev is closed for new drivers, drm won't take anything but atomic
drivers.

Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: Teddy Wang <teddy.wang@siliconmotion.com>
Cc: Sudip Mukherjee <sudip@vectorindia.org>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/sm750fb/TODO

@@ -6,8 +6,8 @@ TODO:
 - check on hardware effects of removal of USE_HW_I2C and USE_DVICHIP (these two
 	are supposed to be sample code which is given here if someone wants to
 	use those functionalities)
-- move it to drivers/video/fbdev
-- modify the code for drm framework
+- must be ported to the atomic kms framework in the drm subsystem (which will
+  give you a basic fbdev driver for free)
 
 Please send any patches to
 	Greg Kroah-Hartman <greg@kroah.com>