* Don't wait for QEMU to start if it's never going to (because runqemu
exited with an error)
* Don't error out if killing the process fails with "no such process"
(we don't care if it's already dead)
(From OE-Core rev: 1789b89de6c4642464abadd9f8a4746385e6b4a7)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>