The qemu.sh script can fail, due to misconfiguration or other problems,
before it actually starts qemu. Therefore, move the help text to right
before starting the emulator.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
The virtualized system is configured through kconfig under "External
Options"->"QEMU Virtualization".
To launch the system, simply run "make run". This works both from
output directories, and from the infix root with O= set.