[PATCH] more kernel_execve() fallout (sbus)

drivers/sbus/char stuff using kernel_execve() needs linux/syscalls.h
now; includes trimmed, while we are at it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/sbus/char/envctrl.c b/drivers/sbus/char/envctrl.c
index 728a133..6b6a855 100644
--- a/drivers/sbus/char/envctrl.c
+++ b/drivers/sbus/char/envctrl.c
@@ -20,16 +20,12 @@
  */
 
 #include <linux/module.h>
-#include <linux/sched.h>
+#include <linux/init.h>
 #include <linux/kthread.h>
-#include <linux/errno.h>
 #include <linux/delay.h>
 #include <linux/ioport.h>
-#include <linux/init.h>
 #include <linux/miscdevice.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/kernel.h>
+#include <linux/syscalls.h>
 
 #include <asm/ebus.h>
 #include <asm/uaccess.h>