power/reset: zx: Remove unnecessary include file

Including ARM related header file cause build failure
in i386 build because COMILE_TEST also involve building
zx driver. Remove the unnecessary include file.
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>

drivers/power/reset/zx-reboot.c

@@ -18,8 +18,6 @@
 #include <linux/platform_device.h>
 #include <linux/reboot.h>
 
-#include <asm/proc-fns.h>
-
 static void __iomem *base;
 static void __iomem *pcu_base;