In the current state if a SIGTERM is sent to
the testimage worker, the worker will exit but
runqemu and qemu won't exit and the processes
need to be killed manually to free the
bitbake lock.
This allows to catch the SIGTERM signal in
testimage, this way it is possible to stop
runqemu and qemu and allow to free the bitbake lock.
Also this allows to skip the rest of the tests
when running the tests in qemu or real hardware.
This also solves minimal breaks in the setup of the
runtime test when checking if qemu is alive.
[YOCTO #8239]
Signed-off-by: Benjamin Esquivel <benjamin.esquivel@linux.intel.com> Signed-off-by: Mariano Lopez <mariano.lopez@linux.intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
