[PATCH] fix missing ifdefs in syscall classes hookup for generic targets

several targets have no ....at() family and m32r calls its only chown variant
chown32(), with __NR_chown being undefined.  creat(2) is also absent in some
targets.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>

lib/audit.c

@@ -28,8 +28,10 @@ int audit_classify_syscall(int abi, unsigned syscall)
 	switch(syscall) {
 	case __NR_open:
 		return 2;
+#ifdef __NR_openat
 	case __NR_openat:
 		return 3;
+#endif
 #ifdef __NR_socketcall
 	case __NR_socketcall:
 		return 4;