asm-m32r/uaccess.h must #include <asm/setup.h>

This patch fixes the following compile error caused by
commit 4016a1390d07f15b267eecb20e76a48fd5c524ef
(mm/nommu.c: return 0 from kobjsize with invalid objects):

/home/bunk/linux/kernel-2.6/git/linux-2.6/mm/nommu.c: In function 'kobjsize':
/home/bunk/linux/kernel-2.6/git/linux-2.6/mm/nommu.c:112: error: 'memory_end' undeclared (first use in this function)
/home/bunk/linux/kernel-2.6/git/linux-2.6/mm/nommu.c:112: error: (Each undeclared identifier is reported only once
/home/bunk/linux/kernel-2.6/git/linux-2.6/mm/nommu.c:112: error: for each function it appears in.)

The patch also removes now no longer required memory_{start,end}
declarations inside access_ok().

Reported-by: Adrian Bunk <[e-mail]>
Signed-off-by: Adrian Bunk <[e-mail]>
Cc: Hirokazu Takata <[e-mail]>
Cc: Michael Hennerich <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

include/asm-m32r/uaccess.h

···
 #include <linux/errno.h>
 #include <linux/thread_info.h>
 #include <asm/page.h>
+#include <asm/setup.h>
 
 #define VERIFY_READ 0
 #define VERIFY_WRITE 1
···
 #else
 static inline int access_ok(int type, const void *addr, unsigned long size)
 {
-	extern unsigned long memory_start, memory_end;
 	unsigned long val = (unsigned long)addr;
 
 	return ((val >= memory_start) && ((val + size) < memory_end));