aufs: Update to aufs3.x-rcN-20140421
[rt] Disable until it is updated for 3.15 or later
Refresh/drop patches as appropriate; in particular:
- update filenames in fbdev patches
- drop the ARM sunxi backports, which came from 3.15
svn path=/dists/trunk/linux/; revision=21296
- [i386] udeb: Move i2c-algo-bit to i2c-modules and make fb-modules depend on it
- viafb: Autoload on OLPC XO 1.5 only
svn path=/dists/sid/linux/; revision=20224