ANDROID: inotify: Fix erroneous update of bit count

Patch "vfs: add d_canonical_path for stacked filesystem support"
erroneously updated the ALL_INOTIFY_BITS count. This changes it back

Change-Id: Idb04edc736da276159d30f04c40cff9d6b1e070f
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 6413928..c4c4504 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -825,7 +825,7 @@
 	BUILD_BUG_ON(IN_ISDIR != FS_ISDIR);
 	BUILD_BUG_ON(IN_ONESHOT != FS_IN_ONESHOT);
 
-	BUG_ON(hweight32(ALL_INOTIFY_BITS) != 22);
+	BUG_ON(hweight32(ALL_INOTIFY_BITS) != 21);
 
 	inotify_inode_mark_cachep = KMEM_CACHE(inotify_inode_mark, SLAB_PANIC);