Upgrade qemu from version 2.1.2 to 2.2.0.
Update Qemu-Arm-versatilepb-Add-memory-size-checking.patch for new
version qemu.
(From OE-Core rev: a693ccb1603be1125bea3b254bf4b6c4188890ac)
Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>