Since we do not have kmeta infrastructure for kernel
the qemu builds fail due to this file not being there and
qemu sort of forcing it.
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Modify freedom-u540 machine to boot off of sd card by default.
Note that there is a bug with the U540's SPI controller that
makes this painfully slow.
Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com>
