[PATCH] Export path_lookup()

path_lookup() is no longer an inline function, and needs to be exported
for jffs2, nfsd and af_unix to load as modules.

kernel/ksyms.c

@@ -144,6 +144,7 @@ EXPORT_SYMBOL(force_delete);
 EXPORT_SYMBOL(follow_up);
 EXPORT_SYMBOL(follow_down);
 EXPORT_SYMBOL(lookup_mnt);
+EXPORT_SYMBOL(path_lookup);
 EXPORT_SYMBOL(path_init);
 EXPORT_SYMBOL(path_walk);
 EXPORT_SYMBOL(path_release);