[PATCH] ARM: imx_v6_v7_defconfig: Restore CONFIG_BACKLIGHT_CLASS_DEVICE

[Shawn Guo]

On Thu, Feb 01, 2024 at 03:00:54PM -0300, Fabio Estevam wrote:
> From: Fabio Estevam <festevam at denx.de>
> 
> Since commit bfac19e239a7 ("fbdev: mx3fb: Remove the driver") backlight
> is no longer functional.
> 
> The fbdev mx3fb driver used to automatically select 
> CONFIG_BACKLIGHT_CLASS_DEVICE.
> 
> Now that the mx3fb driver has been removed, enable the
> CONFIG_BACKLIGHT_CLASS_DEVICE option so that backlight can still work
> by default.
> 
> Tested on a imx6dl-sabresd board.
> 
> Cc: stable at vger.kernel.org
> Fixes: bfac19e239a7 ("fbdev: mx3fb: Remove the driver")
> Signed-off-by: Fabio Estevam <festevam at denx.de>

Applied, thanks!