There is no good reason not to use ext4 at this point, it has advantages
and few drawbacks. Therefore switch the qemu machines over (and the default
runqemu script options).
(From OE-Core rev: 430b9ae71b1aa76f8421127d17e0e0723d4818d3)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
7dcf6c9d45