Allwinner fixes for 3.19
A few minor fixes for the 3.19 kernel:
- The 8250 uart driver now respects the aliases, which pointed out that we
were using them wrong. Fixed them.
- The simplefb pipeline that was used on the A10 caused flickering and
tearing, and rendered it pretty much useless. Added a new simplefb node
with another pipeline that removes this issue. Note that we need to keep
the old node because u-boot 2015.01 uses it.
- Added a fix for the USB phy node on sun4i/sun5i