ARM: npcm: Drop unused includes

Several includes are not needed, so drop them.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230803-dt-header-cleanups-for-soc-v2-9-d8de2cc88bff@kernel.orgSigned-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/mach-npcm/platsmp.c

@@ -5,12 +5,9 @@
 #define pr_fmt(fmt) "nuvoton,npcm7xx-smp: " fmt
 
 #include <linux/delay.h>
-#include <linux/device.h>
 #include <linux/smp.h>
 #include <linux/io.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/of_platform.h>
 #include <linux/of_address.h>
 #include <asm/cacheflush.h>
 #include <asm/smp.h>