linux-imx

leds: pwm: Remove unneeded header file

There is nothing provided by <linux/fb.h> that is used here,
so remove this unneeded header file.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>