m68knommu: fix pread/pwrite defines

Fix system call defines for system call 180 and 181 to match the underlying
system call table function entries.  System call 180 calls sys_pread64, and
181 calls sys_pwrite64, so make the definitions match.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/asm-m68knommu/unistd.h

@@ -185,8 +185,8 @@
 #define __NR_rt_sigtimedwait	177
 #define __NR_rt_sigqueueinfo	178
 #define __NR_rt_sigsuspend	179
-#define __NR_pread		180
-#define __NR_pwrite		181
+#define __NR_pread64		180
+#define __NR_pwrite64		181
 #define __NR_lchown		182
 #define __NR_getcwd		183
 #define __NR_capget		184