ARM: ux500: get rid of unused header

This removes the unused inclusion of
<linux/platform_data/pinctrl-nomadik.h> which is
the last user in the entire kernel of this platform
data header.
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/mach-ux500/board-mop500-audio.c

@@ -7,7 +7,6 @@
 #include <linux/platform_device.h>
 #include <linux/init.h>
 #include <linux/gpio.h>
-#include <linux/platform_data/pinctrl-nomadik.h>
 #include <linux/platform_data/dma-ste-dma40.h>
 
 #include "irqs.h"